Diode Dynamics DD0143Q HP36 Cool White BulbsUpgrade. Add a modern appearance to your cargo or backup lights with the 921 HP36. Populated with 36 high power Samsung LEDs, the HP36 illuminates a full 360 degrees. Housed in an aluminum casing with a textured finish for superior heatsinking properties, the HP36 will last for years to come. Best of all, installation only takes minutes simply take out your factory bulb and the HP36 will fit snugly in the socket. Brightness. At 210 lumens, the HP36