By Eric Sharpeand where no controls were used. By replacing the halide lamps with LEDs, with no “smart controls”, a 50% reduction in energy use was realized. By adding in controls to the LEDs, a 93% percent drop in electricity consumption from lighting resulted. With lighting in commercial and industrial buildings consuming at least 20% of electric costs, a reduction of 50% to 93% in that realm is substantial. With lighting representing more than 60% of the average warehouse's electricity end use, the savings potential are immense for any type or sized site or facility.