DoubleLux DL8048 T5 Flourescent 4ft 8 Lamps with 6500K and 40000 Lumen Grow Light System 8 tubes included HIGH LIGHT OUTPUT: 40000 Lumen, Professional Grow Lighting System, 95% Reflectivity German Hammer-tone Reflector. 30% more light output vs comparable systems ALL ACCESSORIES INCLUDED: Qty8 6500K 4ft Bulbs, Hanging hooks and chains, 15' Power cord, Discrete Shipping in Brown Box OUTLET ON FIXTURE - Power up to 3 fixtures off one wall outlet - less clutter, more convenience FLEXIBLE LIGHT OUTPUT: 2 switches on body allow for step dimming - one for inner 4 bulbs, another for outer 4 bulbs. Buy now while supplies last SAFE OPERATION: Rated for operation in Wet/Damp environments. Has Made-In-Italy lampholder with I certificate to prevent fire if tubes get loosed during operation, UL/CUL safety approved. 5 year warranty.