Earth Worth 600 Watt Gorilla Grower Grow Light Kit High Pressure Sodium Bulb Kit for Hydroponics 2-in-1 Reflector works wuth HPS or MH Bulbs Large reflector hood enables more efficient lighting than standard reflectors. Multi-surface large hood to reflect most light to your plants. 6" air vent works perfectly with an optional 6" exhaust fan system (NOT included) Multi-Surface, Highly Reflective, Complete Non-Toxic to Your Plants