Emergency Light Wireless Color & 2.4 GHz Transmitter -- With the Emergency Lights hidden camera you get safety and security. Lights turn on automatically when power goes off. Emergency lights last up to 2 hours using both lights or 4 hours using one light. Can hang in a hallway, basement or any place you like. Includes 6 volt rechargeable battery, high impact durable housing, test switch and LED charge indicator.