MH 400W Lamp

The Lumatek MH 400 W Metal Halide Lamp is a professional-grade light engineered to support vigorous vegetative growth in indoor and greenhouse environments. Built with a high-temperature quartz arc tube filled with a specific horticultural gas blend, this lamp delivers an optimized cool-white spectrum of either 4200 K or 6000 K, producing approximately 40 000 lumens and around 518 µmol/s of PAR. Thanks to its pulse‑start ignition technology, it starts up quickly and restrikes efficiently, while maintaining consistent light output and extending operational lifespan to about 10 000 hours. Designed to fit standard E40 fixtures and optimized for use with Lumatek’s 400 W electronic ballasts, it ensures efficient, reliable performance and is widely regarded as a robust choice among growers. Lumatek’s products are highly performant and efficient so if you want to explore more, then check out their Zeus 465W Compact Pro or Lumatek Attis 200W light systems.