Hydrofarm Quantum 4' T5 432W 8-Tube Fixture without Lamps, Medium 28% more Lumens at plant level High quality German glass coated aluminum reflectors Increases the efficiency of any T5/ho 54W lamps Patented Folding design for easy storage and transportation 120/240V smart-volt out of the box (120V cord included, 240v-bacd6 cord optional)