The 6K Metal Halide is the best spectrum used for vegetative growth to encourage shorter node spacing and bushier plants.

SolisTek double ended lamps feature premium quartz glass for enhanced spectrum and penetration to your plants which results with higher quality and yield.

SolisTek High Frequency MH offers:

• Color Enhanced Full Balanced Spectrum
• Less depreciation of PAR and lumen output over time.
• Precise Gas Combination for Increased Blues, Reds & UV
• True High Frequency Technology & Proper UV Balance 
• Advanced HID Lamp Design for Prolonged Lamp Life
• Designed for Commercial Applications 
• Made for Quality, Consistency & Yield

SolisTek lamps contain enhanced UV Spectra. Exercise caution when working around any HID lamp that contains UV, always wear protective lenses.