The Stacker-Bulb series of LED Bulbs are bright and the only STACKABLE LED BULBS sold in the RV Industry today. The PATENTED BASE-STACK LED BULBS are designed to be used in conjunction with the  Top-Stacks or Top-Caps to increase the Lumen output of the bulb. They also feature Aluminum grids for increased COOLING for long-life.

Simply Stated, the Patented “Stacker Technology” allows you to Expand on the Lumen Output of Each Stacker-Bulb and more Tailor the Product to YOUR Lighting Requirements.