What are the main differences between LED and standard bulb flashlights?
Most standard or traditional flashlights use a filament bulb (incandescent, krypton, halogen, xenon, etc). The light from a tungsten filament bulb is created by heating that tiny metallic wire you see inside the glass globe. The glass envelope and the tungsten filament are easily breakable. Electrical current passing through the wire gives off some of the energy (less than 5-10% power efficacy) in the form of light and the rest (more than 90-95%) gives off heat. Its luminous efficiency is typically less than <15lm/W only. There is only so much heating and cooling the wire can take and eventually it just wears out and needs frequency replacement. In addition, because these filament bulbs do not use electrical energy efficiently, they use up a lot of expensive batteries. On the other hand, LEDs can simply last tens of thousands of hours. They do not give off heat in order to create light and have no filament to wear out. LEDs can efficiently convert up to 90% of electrical energy into li
