Rechargeable mobile light bulb, night market stall, power outage emergency, outdoor adventure Brighter than the same wattage, using the sixth generation of LED chips: slow light, more power, brighter and more stable How does the Emergency LED bulb work? The LyfeLite Emergency LED bulb uses a battery back up system. During a power outage, the battery can power the light bulb for 6-8 hours, Giving you natural light in emergency situations. THREE TRIGGER BRIGHTNESS ADJUSTABLEFIRST : HIGHLIGHT