Xtreme LED Pro DRL Drivers (5th Gen 4Runner Only)

*ONLY COMPATIBLE WITH XENON DEPOT XTREME LED PRO LED BULBS * THE ISSUE Many vehicles run the high beam headlamps at reduced power to provide the DRL function. This is usually done by what's called PWM, pulse width modulation: instead of a constant, steady feed of electric current, the bulbs are fed a stream of very brief pulses of power averaging 50% of the steady-feed voltage. It's done this way because the maximum safe, effective and legal brightness for a DRL is much lower than the minimum for a high beam headlamp. It looks terrible, but it meets legal requirements, it's cheap to install, and that's pretty much all the automakers care about. THE PROBLEM LEDs bulbs are different than halogen bulbs. They're instant-on and instant-off, so PWM feed doesn't dim them — it just makes them flicker, which is not only noticeable and annoying, it's also illegal. Many companies claim you can fix the problem by using what they call a "canbus decoder" or capacitor-based "anti-flicker" module