The Interlux 400W HPS DE Lamp is a high-intensity double-ended high-pressure sodium lamp designed for advanced indoor gardening and hydroponic systems. Operating at full spectrum with a focus on the red and orange wavelengths, it promotes robust flowering and fruiting while supporting overall plant development. The lamp works by emitting powerful, consistent light that penetrates plan... https://www.hydroponicstown.com/790400-d-interlux-400w-hps-de-lamp