Apollo Horticulture Double Ended 1000 Watt Metal Halide MH 1000W Grow Light Bulb Lamp 1 - Apollo Horticulture 1000-watt Metal Halide Double Ended Grow Light Bulb. Lumens: 75,964 / Volts: 250 / Amps: 4.70 / PAR Value: 1358 umols / Color Temp: 4200K Bulb Base: K12x30S / Bulb Shape: T32 / Life Expectancy : 4,000 Hours Features high blue spectral ratios for great photosynthesis efficiency and vegetative growth. New improved horticulture lamps that use super high output technology to achieve maximum vegetative growth and maximum flower yield. New long lasting life with a high lumen output and low energy consumption