The EYE Super HPS EN Grow Lamps provide 17% more total energy and 25% more energy in the violet, blue, and green spectrum than standard High Pressure Sodium lamps. These lamps are environmentally friendly and pass EPA, TCLP test criteria as non-hazardous waste. Traditionally High Pressure Sodium lamps have been used for flowering and fruit production. HORTILUX HPS lamps were designed with enough violet, blue, and green spectrum to be used as a stand alone light source throughout all phases of plant production. This means that HORTILUX HPS lamps can be used as your only light source.Provides 25% more energy than competitive brands in Violet, Blue and Green. Provides 17% more total spectral energy than the competition. Provides more spectral balance for increased plant response and accelerated growth. 6x - Eye Hortilux High Pressure Sodium Light Bulb - 1000 Watts. We respond to all emails within 24 hours and most emails will receive a response immediately. The item "Eye Hortilux 1000w Light Bulb HPS High Pressure Sodium Grow Lamp Watt, 6 Pack" is in sale since Tuesday, May 21, 2013. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Gardening Supplies\Hydroponics & Seed Starting\Grow Light Bulbs". The seller is "clearance_products" and is located in Whittier, California. This item can be shipped worldwide.