safelumin SA19 450U50 2PK Rechargeable Light Bulbs Cool White Emergency Lights for Home Power Failure Works as Normal LED Light Bulb 3Hrs Battery Backup UL AC120V 40W Equivalent 500lm

America’s most trusted rechargeable led bulbs, our patented power sensing technology is packed full of the most important features any bulb has to offer – so that you can have peace of mind, feel safe and be in control in the event of power outage (without fumbling in the dark!) ?? Intelligent and robust Battery operated lights ?? Works like normal LED light bulb last 25,000hrs ?? Up to 3hrs battery backup light with flip of your existing switch ?? Automatically charging when light is ON and stop charging when battery is full