Your clear choice for HID lamps that provide long-lasting and reliable operation is Xtrasun. Our Xtrasun High Pressure Sodium (HPS) lamps are engineered specifically for use with both magnetic and electronic ballasts, and with their 2000degrees Fahrenheit Kelvin color temperature they consistently provide intense light in the correct spectral range for vigorous flowering growth and can even be used, if desired, throughout the full cycle (in both vegetative and flowering phases). Xtrasun lamps offer exceptional performance and feature high quality components.