SolisTek STMH400-6K Metal Halide Digital Lamp, 400-watt

High frequency, pulse-start digital lamps featuring low iron (low-e) glass for enhanced UVA and UVB penetration to your plants for higher quality and yield! our special low iron glass allows for more UV spectrums to get to your plants and flowers. Low iron glass is composed of purified materials free from contaminants that make the glass extra clear. Usually glass has a green tint to it, these are impurities possibly from recycled materials. It has been proven that low-e glass allows more UV light to pass through. Available in 1000w, 600w & 400w - optimal for all stages of growth. Why digital lighting? the sun is high frequency. In order to make artificial light behave more like natural sunlight it needs to be high frequency. Digital lighting makes for a higher quality of light which is good for all living things. STK lamps contain UVA-UVB and the upper portion of UVC. Exercise caution when working around any hid lamp that contains UV, always wear protective lenses. SolisTek high frequency MH offers: color enhanced full balanced spectrum, prolonged lamp life, less depreciation of par and lumen output over time., Precise gas combination for increased blues, reds & UV, as reliable & efficient as core & coil (magnetic) when paired with SolisTek ballasts, true high frequency technology, expectations: superior photochemical reactions, proper UV balance, advanced hid lamp design, lamps made by life scientists for plants -best sunlight replication, designed for commercial applications, made for quality, consistency & yield.

• Low iron glass
• Superior photochemical reactions
• Proper UV balance