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

unfortunately

Measured Lumens: 410

and it shows

Also available to fit a 5in x 2in mount with our Model 173

They seamlessly match the intensity and color purity of your existing LED upgrades

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