Bright Baum LED Light Cherry Artificial Tree, 4.8-Feet, Cool White Trunks and branches made from resin for better protection against outdoor elements and a longer life span Waterproof double bulb casing and waterproof transformer hidden inside the trunk to withstand all outdoor conditions LED bulbs does not burn but fade by about 0.3% of its original brightness each year The trunk are made with 2mm thick steel tubular pipe for extra stability Trunks and branches made from resin for better protection against outdoor elements and a longer life span