The Nanolux Del 1000W DE 400 V Bulbs are high-quality HPS (High Pressure Sodium) grow lights designed for both flowering and vegetative growth. With a powerful wattage of 1000 W and an input voltage of 400 V, these bulbs provide a spectrum of red and yellow light with a minimum wavelength of 540 nm and a maximum wavelength of 825 nm. Manufactured by Nanolux and backed by a 1-year warranty, these bulbs are ideal for hydroponics setups looking to enhance their growth potential with efficient and reliable lighting technology.