PearTune

E-BIKE E-MTB TUNING KIT PearTune 3.0 Brose Specialized SL 1.1 2020 / 2021

£179.00

PearTune 3.0 Tuning Kit Compatible with all Brose Specialized SL 1.1 drive systems 2020-2021

"Absolutely brilliant! took the bike out today and it’s like a motocross bike 💯" - George

Product Features

Compatible with the all Brose Specialized Creo, Vado, Levo SL 1.1 drive systems, model year 2020-2021.

You can activate your Tuning kit by pressing the 'WALK' button. For Specialized SL eBikes without 'WALK' button, the module is also available in a ‘Still On’ version, where the tuning is always active as soon as you switch on the eBike.

From now on you will be able to ride at a speed over 25mph (40kmh), 30mph (50kmh) and even more than 37mph (60 kmh) - as much as you can pedal!

After the chip is installed, your eBike’s display will show real data, such as maximum and average speeds, daily mileage and cruising range, etc.

If you got a Brose Specialized SL 1.1 eBike without a light activation button or even completely without display at all, you need the PearTune Brose Specialized SL 1.1 ‘Still ON’ version. Tuning kit will be activated automatically when you switch on your eBike.

PearTune Brose Specialized SL 1.1 Tuning Kit comes complete with a manual instruction. The installation of the PearTune tuning kit is quite simple and can be easily done by technical laymen. First the motor cover must be removed and the display unscrewed. The PearTune tool must be connected to the display and to the speed sensor connection at the motor. The PearTune module is located under the frame display after installation.

If you have any questions regarding the setup please do not hesitate in contacting us, we are happy to help.

Will PearTune Brose Specialized Sl work with my eBike?

This tuning kit is compatible with all Brose Specialized Levo, Vado or Creo SL 1.1 2020-2021 eBike motors.

If you have Brose 2014-2021 motor, you will need this tuning kit

If you have a Brose Specialized 2014-2018 motor, Levo, Kenevo, Vado and Creo. You will need this tuning kit

If you have Brose Specialized Vado, Levo or Kenevo 2019-2021 motor, you will need this tuning kit

Assembly

We have prepared detailed instructions, which you will receive together with the Tuning kit to make installation easy for you. You just need to remove the cover from the motor and attach the connectors. You will need a basic toolkit, some bikes may require a crank puller. Disassembly of our tuning chip is just as easy.

If you have any troubles with installation or disassembly, do not hesitate to contact us.

If You are planning to install PearTune on brand-new eBike, make sure you ride it for at least 0.6miles (1km) before the Tuning Kit is activated.

Shipping

All purchases will be dispatched the next day, if you will buy Your PearTune till 12 o'clock we will be dispatched on the same day.

First class, Tracked, 24 - 48 hours Free delivery in the UK Mainland.

Free delivery within 3-5 business days in the EU and 7-10 business days in Rest of the World.

We can offer you Next Day delivery in Europe for some extra Charge.

Two Wheels Empire is an official Partner of PearTune.

Returns

In the event you purchase the incorrect item, we offer 30 days returns policy. Please ensure that the item is returned unopened and use a tracked delivery service.

PearTune Products are thoroughly tested and we stand by their quality.

If You have any questions, please do not hesitate to contact us.
Thank you for looking!
Two Wheels Empire Team

Legal

Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use of PearTune products. Electric bikes equipped with PearTune products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with PearTune products can be used exclusively on private property and entirely at one’s own risk. The use of PearTune may void the warranty of your eBike.

We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.

Product Details

Size without cables - 21 x 40 x 12 mm
Operating voltage - 5-15 V
Max. power consumption - 100 mA / 1.5 W
Weight - Approx. 30g
The voltage within the tuning tool does not exceed 50 V

E-BIKE E-MTB TUNING KIT PearTune 3.0 Brose Specialized SL 1.1 2020 / 2021 ebike chip PearTune Normal

E-BIKE E-MTB TUNING KIT PearTune 3.0 Brose Specialized SL 1.1 2020 / 2021 ebike chip PearTune

E-BIKE E-MTB TUNING KIT PearTune 3.0 Brose Specialized SL 1.1 2020 / 2021 ebike chip PearTune Still On

PearTune

E-BIKE E-MTB TUNING KIT PearTune BR2 For BROSE 2014 - 2020

£159.00

PearTune Brose BR2 Tuning Kit Compatible with all Brose 2014-2020 Motors!

"Absolutely brilliant! took the bike out today and it’s like a motocross bike 💯" - George

Product Features

Compatible with the all Brose 2014-2020 drive systems.

After pressing Lights Off on your eBike, your Tuning kit will be activated. From now on you will be able to ride at a speed over 25mph (40kmh), 30mph (50kmh) and even more than 37mph (60 kmh) - as much as you can pedal!

By pressing the Lights On Tuning kit will be deactivated.

After the chip is installed, your eBike’s display will show real data, such as maximum and average speeds, daily mileage and cruising range, etc.

If you got a Brose eBike without a light activation button or even completely without display at all, you need the PearTune Brose ‘Still ON’ version. Tuning kit will be activated automatically when you switch on your eBike.

Brose Tuning Kit comes complete with a manual instruction. The PearTune BR2 has to be installed between magnetic speed sensor and engine as well as between display and engine (the electricity supply comes via the plug of the display).

If you have any questions regarding the setup please do not hesitate to contact us, we are happy to help.

Will PearTune Brose BR2 work with my eBike?

This tuning kit is compatible with all eBikes that have Brose 2014-2020 motor.

If you have a Brose Specialized 2014-2018 motor, Levo, Kenevo, Vado or Creo. You will need this tuning kit.

If you have Brose Specialized SL 1.1 2020-2021 motor, you will need this tuning kit.

If you have Brose Specialized 2.1 Levo, Vado or Kenevo 2019-2021 motor, you will need this tuning kit

Assembly

We have prepared detailed instructions, which you will receive together with the Tuning kit to make installation easy for you. You just need to remove the cover from the motor and attach the connectors. You will need a basic toolkit, some bikes may require a crank puller. Disassembly of our tuning chip is just as easy.

If you have any troubles with installation or disassembly, do not hesitate to contact us.

If You are planning to install PearTune on brand-new eBike, make sure you ride it for at least 0.6miles (1km) before the Tuning Kit is activated.

Shipping

All purchases will be dispatched the next day, if you will buy Your PearTune till 12 o'clock we will be dispatched on the same day.

First class, Tracked, 24 - 48 hours Free delivery in the UK.

Free delivery within 3-5 business days in the EU and 7-10 business days in Rest of the World.

We can offer you Next Day delivery in Europe for some extra Charge.

Two Wheels Empire is an official Partner of PearTune.

Returns

In the event you purchase the incorrect item, we offer 30 days returns policy. Please ensure that the item is returned unopened and use a tracked delivery service.

PearTune Products are thoroughly tested and we stand by their quality.

If You have any questions, please do not hesitate to contact us.
Thank you for looking!
Two Wheels Empire Team

Legal

Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use of PearTune products. Electric bikes equipped with PearTune products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with PearTune products can be used exclusively on private property and entirely at one’s own risk. The use of PearTune may void the warranty of your ebike.

We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.

Product details

Size without cables - 21 x 40 x 12 mm
Operating voltage - 5-15 V
Max. power consumption - 100 mA / 1.5 W
Weight - Approx. 30g
The voltage within the tuning tool does not exceed 50 V

E-BIKE E-MTB TUNING KIT PearTune BR2 For BROSE 2014 - 2020 ebike chip PearTune PearTune Brose Tuning kit Normal

E-BIKE E-MTB TUNING KIT PearTune BR2 For BROSE 2014 - 2020 ebike chip PearTune

E-BIKE E-MTB TUNING KIT PearTune BR2 For BROSE 2014 - 2020 ebike chip PearTune PearTune Brose Tuning kit Still On

PearTune

E-BIKE TUNING KIT PearTune BROSE Specialized 2.1 for VADO LEVO KENEVO 2019-2021

£179.00

PearTune 3.0 Tuning Kit Compatible with all Brose Specialized 2.1 2019-2021 motor, for VADO, LEVO, KENEVO!

"Absolutely brilliant! took the bike out today and it’s like a motocross bike 💯" - George

Product Features

Compatible with the all Brose Specialized 2.1 2019-2021 motor, VADO LEVO and KENEVO.

You can activate your Tuning kit by pressing the 'WALK' button.

For eBikes without 'WALK' button we do suggest a ‘Still On’ version. Tuning is activated by turning On the eBike.

From now on you will be able to ride at a speed over 25mph (40kmh), 30mph (50kmh) and even more than 37mph (60 kmh) - as much as you can pedal!

After the chip is installed, your eBike’s display will show real data, such as maximum and average speeds, daily mileage and cruising range, etc.

PearTune Brose Specialized 2.1 Tuning Kit comes complete with a manual. The installation of the PearTune tuning kit is quite simple and can be easily done by technical laymen. First the motor cover must be removed and the display unscrewed. The PearTune tool must be connected to the display and to the speed sensor connection at the motor. The PearTune module is located under the frame display after installation.

Tuning kit is 100% waterproof.

If you have any questions regarding the setup please do not hesitate in contacting us, we are happy to help.

Will PearTune Brose Specialized 2.1 work with my eBike?

This tuning kit is compatible with all Brose Specialized 2.1 2019-2021 motors; VADO, LEVO and KENEVO eBikes.

If you have a Brose Specialized 2014-2018 motor, Levo, Kenevo, Vado or Creo. You will need this tuning kit

If you have Brose 2014-2020 motor, you will need this tuning kit

If you have Brose Specialized SL 1.1 2020-2021 motor, you will need this tuning kit

Assembly

We have prepared detailed instructions, which you will receive together with the Tuning kit to make installation easy for you. You just need to remove the cover from the motor and attach the connectors. You will need a basic toolkit, some bikes may require a crank puller. Disassembly of our tuning chip is just as easy.

If you have any troubles with installation or disassembly, do not hesitate to contact us.

If You are planning to install PearTune on brand-new eBike, make sure you ride it for at least 0.6miles (1km) before the Tuning Kit is activated.

Shipping

All purchases will be dispatched the next day, if you will buy Your PearTune till 12 o'clock we will be dispatched on the same day.

First class, Tracked, 24 - 48 hours Free delivery in the UK Mainland.

Free delivery within 3-5 business days in the EU and 7-10 business days in Rest of the World.

We can offer you Next Day delivery in Europe for some extra Charge.

Two Wheels Empire is an official Partner of PearTune.

Returns

In the event you purchase the incorrect item, we offer 30 days returns policy. Please ensure that the item is returned unopened and use a tracked delivery service.

PearTune Products are thoroughly tested and we stand by their quality.

If You have any questions, please do not hesitate to contact us.
Thank you for looking!
Two Wheels Empire Team

Legal

Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use of PearTune products. Electric bikes equipped with PearTune products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with PearTune products can be used exclusively on private property and entirely at one’s own risk. The use of PearTune may void the warranty of your ebike.

We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.

Product details

Size without cables - 21 x 40 x 12 mm
Operating voltage - 5-15 V
Max. power consumption - 100 mA / 1.5 W
Weight - Approx. 30g
The voltage within the tuning tool does not exceed 50 V

E-BIKE TUNING KIT PearTune BROSE Specialized 2.1 for VADO LEVO KENEVO 2019-2021 ebike chip PearTune

PearTune

E-BIKE E-MTB TUNING KIT PearTune MSO-TQ FlyOn

£225.00

PearTune MSO-TQ is an e-bike tuning kit used for removing the speed limiter of electric asisted bycicles with centerdrives TQ, especially with Haibike FlyOn.

Product Features

PearTune MSO-TQ FlyOn is revolutionary tuning kits which completely removes 16mph (25kph) speed limit of your electric bike. This enables you to ride much faster with full motor support.

After the chip is installed Speed Limit will be fully removed! Your e-bike? Even when the tuning is active, the E-Bike display will still show the correct speed (no halving of the values). Also maximum and average speed will be displayed correctly. Only the values for distance can be a little lower than in reality..

Activation -The tuning kit can be activated or deactivated anytime during the ride by pressing of LIGHT BUTTON or "+" and "-" buttons. The device state is indicated by the speed gauge which will show ''9.9"/"2.5" for a short while after activation/deactivation the PearTune , so the rider can always know whether the device is active or not.

PearTune MSO-TQ FlyOn Tuning Kit come complete with an instruction manual.

If you have any questions regarding the setup please do not hesitate in contacting us, we are happy to help.

Note: If you install PearTune on a completely new E-Bike, you must first ride at least 0.6 miles (1 kilometer) before you switch on the tuning for the first time.

Which PearTune Tuning Kit do I need?

PearTune MSO FlyOn TQ is compatible with Haibike Flyon with TQ engine. Fully tested and compatible with Haibike FLYON All Mountain 2020 (Haibike All Mountain and also on Adventure in UK)!

Assembly

Assembly is easy, you just need to remove the cover from the motor and connect Tuning kit by the original connectors. You will need a basic toolkit, some bikes may require a crank puller.

When you will receive a Tuning kit, you will find a full manual how to install it. If you will need any further assistance, do not hesitate to contact us.

Legal

Please note the usage of modified eBikes on public roads may be against the law in some countries, PearTune products are only to be used on private property. Using the PearTune tuning kit may result in the loss of warranty for your eBike.

PearTune Products are thoroughly tested and we stand by their quality.

If You have any question, please do not hesitate to contact us.

Thank you for looking!

Two Wheels Empire Team

E-BIKE E-MTB TUNING KIT PearTune MSO-TQ FlyOn ebike chip PearTune

PearTune

E-BIKE E-MTB TUNING KIT PearTune MSO 3.0 for Shimano E8000, E6100, E6010, E6012, E5000, E7000 (2018-2020)

£159.00

PearTune Tuning Kit is compatible with Shimano E8000, E6100, E6010, E6012, E5000, E7000 (2018-2020) Motors.

Product Features

The PearTune Shimano is the most sophisticated version of this popular tuning module to date, now also compatible with the very latest Shimano drives and updates.

This tuning kit shifts the maximum motor support from 16 mph to 31 mph (25 kph to 50 kph).

After the chip is installed Speed Limit will be removed! All readings like actual speed, max speed, average speed, distance etc. are correctly displayed.

Activation - by pressing the light button. It can be activated and deactivated any time you want.

The PearTune Shimano Tuning Kit come complete with an instruction manual.

If you have any questions regarding the setup please do not hesitate in contacting us, we are happy to help.

The power supply of the PearTune Tuning kit is provided by the light connection of the e-bike.

Which PearTune Tuning Kit do I need?

This tuning kit is compatible with all eBikes; eMTB and etc. with Shimano E8000, E6100, E6010, E6012, E7000, E5000, E7000 (2018-2020) Motors.

Compatible with latest firmware, 4.7.1 and newer!

For the the Ebike with Di2 we do suggest PearTune Shimano STEPS E8000.
Press the link.

For the Shimano E6000 we do suggest SpeedBox Shimano E6000.
Press the link.

Assembly

Assembly is easy, you just need to remove the cover from the motor and connect Tuning kit by the original connectors. You will need a basic toolkit, some bikes may require a crank puller.

When you will receive a Tuning kit, you will find a full manual how to install it. If you will need any further assistance, do not hesitate to contact us.

Legal

Please note the usage of modified eBikes on public roads may be against the law in some countries, PearTune products are only to be used on private property. Using the PearTune tuning kit may result in the loss of warranty for your eBike.

PearTune Products are thoroughly tested and we stand by their quality.

If You have any question, please do not hesitate to contact us.

Thank you for looking!

Two Wheels Empire Team

E-BIKE E-MTB TUNING KIT PearTune MSO 3.0 for Shimano E8000, E6100, E6010, E6012, E5000, E7000 (2018-2020) ebike chip PearTune

PearTune

E-BIKE E-MTB TUNING KIT PearTune 3.0 for Bosch

£149.00

PearTune Bosch 3.0 has been optimised in many ways and is now even compatible with the new Bosch 2020 drive systems.

Works with the latest Bosch update released on 2020 06!

Product Features

This is the latest and so far best version of one of the most popular Tuning Kits for Bosch E Bikes ever. Compared to its predecessors, the PearTune MSO 3.0 has been optimized in many ways and is now compatible with the new Bosch 2020 drive systems.

With this Tuning Kit you can completely take away the 16 mph (25 kph) speed limitation and finally experience the full power of your Bosch drive system. And all this with correct speed indication on the display!

After the chip is installed Speed Limit will be fully removed! When the Tuning Kit is active, you will see correct values on the display such as distance, average and maximum speed etc.

Activation - The Tuning Kit can be switched ON and OFF at any time using the 'WALK' button. When the Tuning kit is activated, the Motor Power display flashes every 5 seconds - this indicates that the Tuning Kit is active.

For Bosch E-Bikes without 'WALK' Button there is also the optional "Still On" version, where the Tuning Kit is always active after switching on the E-Bike.

The PearTune Bosch 3.0 Tuning Kit installation is very easy: The PearTune module simply needs to be connected between the motor and the display and between the motor and the magnetic speed sensor.

This Tuning kit come complete with an instruction manual too.

If you have any questions regarding the setup please do not hesitate in contacting us, we are happy to help.

You don't need a separate battery for the module (power supply is provided by the display connector).

Which PearTune Tuning Kit do I need?

This tuning kit is compatible with all eBikes; eMTB and etc. with all Bosch drive systems and displays from 2014 up to (and including) 2020.

Drive systems: Bosch Active Line, Performance Line, Performance CX Line, Active Line Plus.

The PearTune Bosch 3.0 has also been successfully tested on the brand new Bosch 2020 drives & displays! No error codes!

Assembly

Assembly is easy, you just need to remove the cover from the motor and connect Tuning kit by the original connectors. You will need a basic toolkit, some bikes may require a crank puller.

When you will receive a Tuning kit, you will find a full manual how to install it. If you will need any further assistance, do not hesitate to contact us.

Legal

Please note the usage of modified eBikes on public roads may be against the law in some countries, PearTune products are only to be used on private property. Using the PearTune tuning kit may result in the loss of warranty for your eBike.

PearTune Products are thoroughly tested and we stand by their quality.

If You have any question, please do not hesitate to contact us.

Thank you for looking!

Two Wheels Empire Team

E-BIKE E-MTB TUNING KIT PearTune 3.0 for Bosch ebike chip PearTune Normal

E-BIKE E-MTB TUNING KIT PearTune 3.0 for Bosch ebike chip PearTune

PearTune

E-BIKE E-MTB TUNING KIT PearTune MSO for Shimano STEPS E8000 with Di2

£159.00

PearTune Tuning Kit is compatible with Shimano STEPS E8000 Motor with Di2 (Electric Gear Switching system).

Product Features

The PearTune Shimano E8000 Di2 is compatible with Shimano STEPS E Bikes with E8000, E7000, E6100, E5000 mid-mounted motor with Di2 gearshift.

This tuning kit shifts the maximum motor support from 16 mph to 31 mph (25 kph to 50 kph).

After the chip is installed Speed Limit will be fully removed! When the tuning kit is active, the speed is correctly displayed up to 14 mph (22 kph). When speeds over 14 mph (22 kph) are achieved the speed indicator constantly shows 14 mph (22 kph).

Activation - by pressing the light button. It can be activated and deactivated any time you want.

The PearTune Shimano E8000 Di2 Tuning Kit come complete with an instruction manual.

If you have any questions regarding the setup please do not hesitate in contacting us, we are happy to help.

The power supply of the PearTune Tuning kit is provided by the light connection of the eBike.

Which PearTune Tuning Kit do I need?

This tuning kit is compatible with all eBikes; eMTB and etc. with Shimano STEPS E8000, E7000, E6100, E5000 Motors with Di2.

Compatible with latest firmware, 4.7.0 and newer!

For the the Ebike without Di2 we do suggest SpeedBox Shimano E8000.
Press a link.

For the Shimano E6000 we do suggest SpeedBox Shimano E6000.
Press the link.

Assembly

Assembly is easy, you just need to remove the cover from the motor and connect Tuning kit by the original connectors. You will need a basic toolkit, some bikes may require a crank puller.

When you will receive a Tuning kit, you will find a full manual how to install it. If you will need any further assistance, do not hesitate to contact us.

Legal

Please note the usage of modified eBikes on public roads may be against the law in some countries, PearTune products are only to be used on private property. Using the PearTune tuning kit may result in the loss of warranty for your eBike.

PearTune Products are thoroughly tested and we stand by their quality.

If You have any question, please do not hesitate to contact us.

Thank you for looking!

Two Wheels Empire Team

E-BIKE E-MTB TUNING KIT PearTune MSO for Shimano STEPS E8000 with Di2 ebike chip PearTune

PearTune

E-BIKE E-MTB TUNING KIT PearTune BR2 Still On For BROSE Specialized 2014 - 2018

£159.00

PearTune Brose BR2X Tuning Kit Compatible with all Brose Specialized 2014-2018 motor, Levo, Kenevo, Vado or Creo!

"Absolutely brilliant! took the bike out today and it’s like a motocross bike 💯" - George

Product Features

Compatible with the all Brose Specialized 2014-2018 drive systems. For Levo, Kenevo, Creo or Vado.

After installation your Tuning kit will be always activated with this PearTune BR2X ‘Still On’ version. Tuning kit will be activated automatically when you switch On your eBike.

From now on you will be able to ride at a speed over 25mph (40kmh), 30mph (50kmh) and even more than 37mph (60 kmh) - as much as you can pedal!

After the chip is installed, your eBike’s display will show real data, such as maximum and average speeds, daily mileage and cruising range, etc.

Brose BR2X Tuning Kit comes complete with an instruction manual. The PearTune has to be installed between magnetic speed sensor and engine as well as between display and engine (the electricity supply comes via the plug of the display).

If you have any questions regarding the setup please do not hesitate to contact us, we are happy to help.

Will PearTune Brose BR2X work with my eBike?

This tuning kit is compatible with all eBikes that have Brose Specialized 2014-2018 motor for Levo, Kenevo, Creo, Vado. And Brose 2014-2020 motors.

If you have Brose 2014-2020 motor, you can choose BR2X tuning kit or go with the regular one, the one you can turn On/Off

If you have Brose Specialized SL 1.1 2020-2021 motor, you will need this tuning kit

If you have Brose Specialized 2.1 Levo, Vado or Kenevo 2019-2021 motor, you will need this tuning kit

Assembly

We have prepared detailed instructions, which you will receive together with the Tuning kit to make installation easy for you. You just need to remove the cover from the motor and attach the connectors. You will need a basic toolkit, some bikes may require a crank puller. Disassembly of our tuning chip is just as easy.

If you have any troubles with installation or disassembly, do not hesitate to contact us.

If You are planning to install PearTune on brand-new eBike, make sure you ride it for at least 0.6miles (1km) before the Tuning Kit is activated.

Shipping

All purchases will be dispatched the next day, if you will buy Your PearTune till 12 o'clock we will be dispatched on the same day.

First class, Tracked, 24 - 48 hours Free delivery in the UK.

Free delivery within 3-5 business days in the EU and 7-10 business days in Rest of the World.

We can offer you Next Day delivery in Europe for some extra Charge.

Two Wheels Empire is an official Partner of PearTune.

Returns

In the event you purchase the incorrect item, we offer 30 days returns policy. Please ensure that the item is returned unopened and use a tracked delivery service.

PearTune Products are thoroughly tested and we stand by their quality.

If You have any questions, please do not hesitate to contact us.
Thank you for looking!
Two Wheels Empire Team

Legal

Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use of PearTune products. Electric bikes equipped with PearTune products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with PearTune products can be used exclusively on private property and entirely at one’s own risk. The use of PearTune may void the warranty of your ebike.

We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.

Product details

Size without cables - 21 x 40 x 12 mm
Operating voltage - 5-15 V
Max. power consumption - 100 mA / 1.5 W
Weight - Approx. 30g
The voltage within the tuning tool does not exceed 50 V