3rd Brake Light LED for 2007-2021 GMC Sierra 3500 (one), XPR (720 lumens) Chrysler white LED light

white LED light

44mm SML9 LED Blue Pair

while their amber LED-powered optics offer superior brightness

and it shows

unfortunately

3rd Brake Light LED for 2007-2021 GMC Sierra 3500 (one), XPR (720 lumens) Chrysler white LED lightUpgrade. Add more light output and a modern appearance to your vehicle with the 921 XPR 3rd brake light bulb. Each of the four sides of this bulb is populated with 4 high power LEDs for maximum brightness. Housed in an aluminum casing with a textured finish for superior heatsinking properties the XPR will last for years to come. Best of all installation only takes minutes simply take out your factory bulb and the XPR will fit snugly in the socket.