Opulight 315W Super CMH 3100K Grow Light Bulb, Ceramic Metal Halid, 1 Pack

>>CMH lights have 2.5 times the blue light of HPS lights. The 13.4% blue light from CMH lights is slightly higher than a 50/50 mix of HPS and MH lights. CMH lights have a more uniform spectral output than any other lamp system used for plant growth lighting. 
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Features
High Lumen output: Initial Lumens: 40,000. 600 μmol/s
High Lumen Maintenance: Output 315W, 90% at 8,000 hours;85% at 20,000 hours
Color Temperature: 3100K
High CRI (Color Rendering Index): 95. Richest spectrum bulb on the market. 
Base: PGZX18 
System: Can be used on 315W CMH Grow Light System
Size: Smaller than traditional metal halide lamps
Low Heat Generated & Enhanced Lifespan: 15000 hours’ lifespan
More Active Radiation (PAR) per watt than standard HPS/MH Bulb
 
Dimensions
Operating Position: Universal
Unit Dimensions: 40 x 40 x 195mm
Shipping Box Dimensions: 56 x 56 x 215mm
Unit Weight: 192g
Shipping Box Weight: 260g