50W COB LED Work Light on a tripod. High power with extra-wide light diffusion to illuminate large areas. COB LED bulbs (or Chip On Board LEDs) have been especially designed & developed to increase the amount of lumens (i.e. light) per Watt. Not only do COB LEDs give off more light that normal LEDs, but they can give you energy savings of anything up to 90% when compared against Tungsten or Halogen equivalents.