Unique Lighting Systems LED Series transformers are built for efficiency and dependability. All LED Series transformers feature a 12V, 13V, 14V, and 15V tap, and two common terminals to ensure every fixture receives ample voltage. The stainless steel cabinet and lockable door are built to withstand the elements over time and prevent unwanted tampering and vandalism. Further, the door is removable to make wiring and troubleshooting easy. Backed by a 10-year warranty and available in 150W, 300W, and 600W options, LED Series transformers are capable of bringing the needed power and flexibility to any lighting design.