I wear a Klim Induction vented moto jacket. Kinda pricey but I feel like it will actually help if I go down. It’s very high quality. The venting makes heat a non issue once rolling.
Voltage x amperage(current) = wattage
So increasing the voltage allows you to reduce current flowing through the system to get equivalent wattage. It’s high current that heats wires and stresses the system.