SinoPro 75watt LED Corn Light Bulbs,large Screw Base (E39) Daylight White 5000-5500k (200-250 Watts Replacement) Street and Area Lighting,360&deg;Beam Angle,patented Cooling Technology, ETL Certification Low power consumption, Epistar high quality LED chip 100lm/w, ultra bright, 75W replacement 150W CFL, 200W HPS and 350W halogen, save 80% in electricity consumption. Wider lighting area, 360 Beam Angle and 7 lighting sides, perfect area ambience lighting. Better heat dissipation and longer life 50,000hrs, patented heat dissipation structure design to speed up the cooling progress, avoiding heat accumulation. High quality power driver, constant current precision 3%, power efficiency&gt;90%, stable quality and life time assurance. Universal application, replace any current HPS or HIDs and fits with any standard large mogul E39 screw base, ballast must be removed.