Prism Lighting Science Double Ended HPS Lamp Kit, with DE HPS Lamp, DE Ballast and DE Wing Reflectore are created with premium lab grade materials. High quality Japanese Ceramic Jacketing and Enriched Clear Crystal Quartz provide high PPF of 2100 umol/s.149,500 lumens. LAB GRADE QUALITY Prism Lighting Science Double Ended HPS Lamps are created with premium lab grade materials. High quality Japanese Ceramic Jacketing and Enriched Clear Crystal Quartz provide high PPF of 2100 umol/s. BROAD SPECTRUM Double Ended 1000W technology provides enhanced spectrum coverage with peaks directly targeting the photosynthetically active nanometer ranges optimal for Chlorophyll A & B production. LONG LIFE Interior jacketing and high quality probes allow for greater stability than standard single socket lamps. Reducing degredation and increasing quality light output for horticulture applications. OUTPUT SPECIFICATIONS: Lumonus Flux: 149,500 lumens Lumen/Watt: 149.5 CRI: 28.1 Ra8 PFF: 2100+ Color Temperature: 2000K Rated Life: 24,000 hours SPECIFICATIONS: Overall Length: 390mm (15.35") Glass Base to Base: 270mm (10.63") Glass Jacket: 320mm (12.6") Weight: 128g (~.28lb) Bulb/Base Designation: T40/K12x30s Socket Pulse Rating: >5kva Fixture Rating: Open/Close Burning Position: Horizontal ±150 Operating Voltage: 220v Operating Current: 4.57A Operating Wattage: 1000w Arc Tube: High Grade Japanese Ceramic Glass Jacket: Clear Crystal quartz enriched with uv inhibitors HG- This lamp contains mercury dispose of properly lamprecycle.org