Strict Standard With a built-in 3.6V 1000mAh rechargeable battery, the emergency light is able to remain at enough brightness for at least 90 minutes during power outages and ensures adequate evacuation times, which complies with the UL 924 Emergency Lighting and Exit Sign Regulations. Thoughtful Design Designed with 12pcs LEDs and one bead lens per head, the LED emergency light with 6000K pure white light provides sufficient brightness to the darkness. This LED emergency light is much more compact than the traditional emergency light, occupying less space without affecting the existing furnishing style. User Friendly The emergency light is easy to install without any fuss by following the instructions even for normal people who are not electricians. It also comes with two voltage levels, which makes it able to be used in commercial places at 277 volts or residences at 120 volts. Note: To test the light, press the “TEST” button, and the emergency light would be turned on. The emergency light would be turned off when the button is released. Specifications: Wattage: 2.4W Input voltage: AC 120V/ 277V Working voltage: 3.6V DC Battery type: Rechargeable battery Waterproof rating: Damp location Warranty: 2 years Working temperature: 32℉- 104℉ Luminous flux: 220lm Finish Colour: Off White Material: ABS