Light it Up with a Trex® 30W Transformer The Trex 30W Transformer is a high-tech power supply designed to provide years of power to your outdoor lighting projects. The lighting transformer comes with one cable, which can be attached to a splitter or adapter without the need for wire nuts, and a photo-activated timer with several options for customizing the run-time of your light system. The 30W Trex Transformer is designed specifically for outdoor use, withstanding years of tough weather including rain, wind and hail. Trex® Through and Through The Trex 30W Transformer is the perfect choice for all Trex Outdoor Lighting installations and can be quickly put in place without any electrical skills. Contained in a small housing, this DC Transformer is backed by a limited 3-year warranty. What's in the Box Every box contains one 30W Transformer, (1) 20' LightHub Transformer Cables and an easy-to-use timer.