For flowering and full cycle plant growth. Your clear choice for HID lamps that provide long-lasting and reliable operation is Xtrasun. Our Xtrasun High Pressure Sodium (HPS) lamps are engineered specifiy for use with both magnetic and electronic ballasts, and with their 2000 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.SKU: EDIB00HXD93Q4 Specification Model:'XTB1000 Item Weight:0.65 pounds Size:' Item Dimensions:3.13x15.25x3.13 inches UPC:638104012010. PROP 65 WARNING: This product can expose you to some kind of chemical, which is known to the State of California to cause cancer. The item "Hydrofarm ML1000HPS, 1000-watt 1000HPS HPS Bulb" is in sale since Wednesday, July 24, 2019. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Hydroponics & Seed Starting\Grow Light Bulbs". The seller is "amiventures54" and is located in Cypress, Texas. This item can be shipped to United States.