Hydrofarm FLF27DF AgroBrite Floor Plant Light with 27-watt CFL, Black The Agrobrite Standing Plant Light offers exceptional illumination and versatility With a flexible neck and adjustable height (48" to 61") this lamp provides bright, natural light that will help plants thrive Flicker-free fluorescent bulbs provide unmatched clarity and color rendering Bulb life - up to 5,000 hours , Kelvin temp - 5400K, Color rendering index 80-85