Growers Choice 4K 1000 Watt Double-Ended MH Bulb

Growers Choice 1000 Watt Double-Ended Metal Halide Bulb, 4K 1000W Descriotion The Grower's Choice 4K bulb is a slightly warmer metal halide, making it suitable for both flowering and vegetative growth. Growers get the most use out of this style of bulb towards the end of the vegetative stage. Outputs UV spectra for enhanced resin production 5% degradation rate at 10,000 hours High quality quartz glass for consistent spectral output and PAR production Designed to prolong bulb life and preserve light quality Features: Well-balanced light helps plants smoothly transition to the flowering stage Useable in all stages of growth Cool blue light is also great for industrial or retail applications Long useable life: 90% at 5000 hours Performance Data: Light output (Lumens @ 100 Hours): 100,000 Lumens per Watt (lm/w): 100 Rated life (Hours @ 10 Hour / start): 6,000 Correlated Color Temperature (K): 4,000 Color Rendering Index (CRI) or (Ra): 65 Photon flux (μmol/s): 1500 Burning Position: H