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Smart diodes allow a motorhome that is towing a car to use that car's rear lights if the car has variable voltage incandescent lights. Unlike regular wiring diodes, smart diodes activate only the intended circuit - brake lights or tail lights.
Features:
Smart diodes allow a motorhome that is towing a car to use the vehicle's rear lights, provided it uses variable voltage tail lights. Variable voltage tail lights use the same wire to power the brake lights and tail lights. They do this by using a 12-volt signal for brakes and a 9-volt signal for tail lights.
If a regular wiring diode is used with variable voltage tail lights, then the bulb will light up as though the vehicle is braking whenever the tail lights are on. That is, you can't tell the difference between the brake lights and running lights. Smart Diodes correctly modulate the voltage to activate only the intended circuit. The result is vehicle lighting that looks and functions as intended.
Average Customer Rating: 4.9 out of 5 stars (21 Customer Reviews)
Smart diodes allow a motorhome that is towing a car to use that car's rear lights if the car has variable voltage incandescent lights. Unlike regular wiring diodes, smart diodes activate only the intended circuit - brake lights or tail lights.
Installed these about a year ago and they have continued to work great for us. Easy install if you’re fairly comfortable wiring new components to your vehicle. Follow eTrailer’s videos to guide you through the process.
etrailer is my go to for all trailer / towing equipment, I have and always recommended your company to friends and family with needs in tow / trailer and RV items. You always provide five star service. That said.
I finally got time to install the smart diode set on my F150. I still have the same operation I had before with the 4 standard diode setup. Each light has Two blubs each having Two elements, the taillights illuminate the taller element in both and the turn and brake illuminate the shorter element in both blubs from the truck systems. From the RV systems only the lower blub is illuminated for taillight, turn, and brake. There are only 4 wires total at the connector: ground, turn, brake, and taillight. After the connector 3 go to the upper blub and jumper to the lower blub. One goes directly to the lower blub. Any ideas on how to get both bulbs functioning will be greatly appreciated.
These worked great and were an easy install etrailer has good videos to follow.
Easy install
I am very pleased with etrailer products. Specifically the Roadmaster smart diode set for my flat towed vehicle. Turns out that
DELIVERED EARLY, WORKING FINE.
Fast shipping, but the price seems unre asonable.
Works well
It was the perfect answer for the lighting the single bulb tail light, thank you!
These were easy to install and worked as advertised.
I did not get tracking or ETA on your webpage. it just showed it was here on the 13th and that was all.
Fast service and quality products.!!
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Doyle
6/15/2023
working great, no problems.