The Solis Tek 400W 6K is a high‑frequency, pulse‑start metal halide grow lamp designed for digital HID ballasts. Branded features include low‑iron (Low‑E) glass to enhance UVA/UVB transmission and maintain balanced spectrum output with reduced PAR and lumen depreciation over time. The 6K blue‑white spectrum is intended for vegetative growth, promoting compact structure and tight internodes. This single‑ended MH lamp draws 400 watts and is positioned by retailers as compatible with Solis Tek digital ballasts and other appropriate HID fixtures. Typical coverage for a 400‑watt MH in cannabis cultivation is about 3×3 ft when hung at proper height and ventilation is managed. Use eye protection around UV‑emitting HID sources and follow ballast/fixture manufacturer guidance for safe operation.
