HouLight Rechargeable emergency backup LED bulbs are simply <b>amazing</b>! Although they look and work like ordinary LED bulbs, they are anything but typical. They are designed to work normally during power outages. <br/><br/><b>Specifications</b><br/> <br/> Brightness: 500 lumens with 120V AC <br/> Light color: 5000K daylight white <br/> Run time without power: more than 3-4 hours after fully charged <br/> Wattage : 5 Watt <br/> Input: AC 120V<br/><br/><b>Applications</b><br/><br/> Households, basements, garages, offices, mechanic shops, warehouses, gardens, patios. <br/> Camping sites, outdoor explorations, hiking lights, work lights. <br/> Emergency backup lights during power failures, hurricanes, flooding, earthquakes, disaster planning toolkits, evacuation planning. <br/> Work as magic bulbs or party bulbs. <br/><br/><b>Question</b>: How to use the bulbs correctly? <br/><b> Answer :</b>Replace old bulbs in the lamp with this bulb and use it as a regular bulb. When there is power outage, it will continue to work for 3-4 hours. Alternatively, place the bulb in the hook cap and use the built-in on/off switch to control the bulb. Or, use fingers/damp cloth/conductive materials to touch both the base tip and the threads base to light it up. <br/><b>Question</b>: Will it work during power outages? <br/><b> Answer :</b>During power outages, simply keep the light switch on, and the light bulb in the lamp will stay on for more than 3-4 hours. Sweet tip: to test the bulb before a power failure, keep the bulb in a lamp socket, unplug and turn on the switch, use wet cloth or a metal fork to connect the two prongs of the plug, switch on and the bulb should still turn on.<br/><b>Question</b>: Why the bulbs doesn’t turn off? <br/><b> Answer :</b>A small portion of American homes’ circuit designs are not compatible with our bulbs, simply contact us for help if your bulbs don’t turn off.