Ceramic Metal Halide Bulb - 315 Watt Size:4000 Kelvin (Blue) single-point calibration for pH and

single-point calibration for pH and EC with one solution

carefully formulated to ensure proper nutrition in both vegetative and bloom stages

An essential tool for outdoor grow scenes

Excellent tool for resistance management

Effective as a final flush to remove mineral buildup (scale) in growing media and irrigation lines

Ceramic Metal Halide Bulb - 315 Watt Size:4000 Kelvin (Blue) single-point calibration for pH andThese Ceramic MH lamps are available in 3,000 K and 4,200 K. Ceramic metal halide lamps are excellent for plant growth and HPS supplementation. Spectral distribution is optimized for photosynthetic efficiency. Blue output for healthy plant growth and robustness. Ceramic mol output within the PAR spectral range (photosynthetic active radiation). Economical due to long average life, high mol output, low energy consumption.