✔️ KEEP THE LIGHTS ON EVEN WHEN THE POWER GOES OUT: Emergency light bulbs for power outage. No more struggling in the dark finding candles or flashlight. With the convenience of flipping your existing light switch, you will have up to 3hrs backup light on demand. ✔️ WORKS LIKE NORMAL LIGHT BULB: Not just for power outages! Our high-quality daily use light is perfect for home and business. Use in rooms, staircase, hallway, bathroom, basement, nursing home, clinic, restaurant, hotel, store, hospital etc. Use Safelumin all day, every day as much as you want. It auto charges when lights on, stops charging when the battery is full. ✔️ KEEPS BATTERY COOL FOR LONGEVITY: Battery backup light bulb works only when battery is healthy. Our patented air-gap design keeps battery away from the hot LEDs, greatly increasing the battery life to 3-5yrs, unlike the others with sealed battery that lasts only 6-8 months, not years. The only power failure light on the market with battery test button to help inspection and maintenance for hotel and public buildings. ✔️ EASY TO USE: Plug and play! Thanks to advanced patented power sensing technology built into the power outage light. Turns light ON and OFF reliably even with up to 12 LED or CFL bulbs on the same switch. Safe and certified by recognized lab. Our quality paired with unbeatable customer service based in USA makes us the ONLY choice for premium emergency light bulb / daily use light! ✔️ ONE OF A KIND LIGHTING GIFT FOR FAMILY AND FRIENDS: #1 Daily use / Led emergency lights for home. Premium quality, great value, easy to use product for the unpredictable power outage event to help the people you love. Sure to be appreciated by the elderly and all families with small children. Dual usage as an normal light makes it so practical. ✔️ SPECIFICATION: •Daily use lights: 800 lumens (60W Replacement) •Backup light: 120 lumens •Energy used: 6.5 watts Normal Use (7.5 watts Charging) •Rating: AC100-240V 50-60Hz (E26 Lamp Base) •Bulb Life: 25,000 hours •Rechargeable Battery: Lithium-ion 3.7V 850mAh •U.S. Patented •Certification: UL / FCC / RoHS ✔️ COLOR MAP: The 2700K/3000K/4000K/5000K is referring light color temperature. 2700K-3000K is warmest, and 4000K-5000K is coolest. Please see Color-Map image below for visual different. Most people order 2700K soft white for home use, while some application prefer 5000K daylight for brighter white.