Stealth Hydroponics Multi Spectrum 315 Watt CFL Light Bank The multi spectrum lighting system provides an amazing 20,000 lumens. Ideal for both vegetative growth and flowering phases. Includes one 2700 Kelvin, one 5000 Kelvin and one 6500 Kelvin for a complete sun-light spectrum. CFL Lamps mean low heat, low energy and low cost! Proudly Made in the USA!