Sunshine Systems GU93635 GrowUFO 90 Watt LED Grow Light More energy efficient than a metal halide or hps grow light Suitable for all phases of plant growth Growufos are great for growing any houseplant More energy efficient than a metal halide or hps grow light Suitable for all phases of plant growth Growufos are great for growing any houseplant Can be used with hydroponics, aeroponics, or soil (potted plants) Virtually no heat emitted