LED Corn Lights. LED replacement lamps often referred to as corn lights because of their rows of led chips are one of today’s most efficient ways to replace metal halide, high pressure sodium and mercury vapor light bulbs. LED Corn lights last longer that all three high intensity discharge lamps, currently the standard life is now 50,000 hours allowing for considerable less maintenance requirements allowing for even greater savings. These are available in a wide range of lumen outputs, replacement wattages start as low as 16 watts and go as high as 450 watt that’s covers all high intensity discharge wattages between 35 and 1500 watts. Another benefit of the LED Corn lights is their ability to maintain their bright light throughout their lifespan, as much as 80% of the lumen out will remain throughout the life of the lamp.