VIVOSUN 1000W Double Ended High Pressure Sodium DE HPS Grow Bulb - Super Lumens 151,000 for Flourishing Growth [CCT 2100K] INTENSE, TAILORED LIGHT SPECTRUM: Ultra-Bright at 151,000 Lumens with optimal PAR output, this lamp falls at 2100K in the red and orange spectrum to stimulate lush, abundant harvests DOUBLE ENDED FOR SUPERIOR RESULTS: Quality double ended system delivers the highest quality light evenly and without obstruction and lasts almost twice as long as a single ended lamp ECONOMICAL AND ENERGY EFFICIENT: This double ended HPS model provides 35% more available energy than a single-ended HPS lamp; enjoy heavier harvests and lower energy bills HIGH QUALITY UNITS: Precision built components precisely render the most nourishing spectra for your plants; Premium Quartz exterior wont distort or dull light output GREAT CUSTOMER SERVICE: VIVOSUN is known for high quality products backed by friendly 24/7 after-sales support. Products arrive packaged discretely to protect your privacy