The Osram POWERSTAR® HQI-E 400W/N CL is a powerful quartz metal halide lamp that delivers efficient and high-quality neutral white light (approx. 4000K). Engineered for use with conventional control gear and ignitor, it features a durable clear outer bulb, E40 base, and integrated UV protection. Ideal for industrial, commercial, and large venue applications, this lamp must be used in enclosed luminaires for safety and optimal performance.