Max Yield Indoor Grow Tent with Reflective Lining (48" X 24" X 78") for Dark Room Hydroponics Exterior Material: Black 210D Denier Ultra Durable Canvas, Light Proof Interior Material: 99.9% Reflective Pentflex (better than Mylar) Frame: Powder Coated Steel Suggested Light Wattage MH or HPS: 400W or 600W Includes Removable Floor, 3 passive vents, 8 ducting ports, 4 electrical ports, hanging straps for filter/fan