Don't believe anyone who tries to sell you LED substitutes for filament bulbs. Lamps designed for filament bulbs will never be as bright with LEDs, and will never have the correct beam pattern either. Filament lamps use optics that are intended to collect light from a point source like a small filament. LED conversions, even those with LED facing to the side, will just not work. A lamp using LEDs must be designed from the start to use them, it is that simple. Also, since LEDs use much less energy, the hazard warning and turn signal flashers will not work unless you use a flasher for towing trailers that is load insensitive. When you do that, then you do not have turn signal failure notification, because a load insensitive flasher can not tell when you have a bulb outage. LED conversion bulbs: just a way to suck hard earned money out of you.