Ryobi’s One+ EVERCHARGE LED area light kit is a workhorse of a wireless, rechargeable light.  It produces 400 lumens of light at high output, and can run for over 24 hours. There are 3 brightness modes, and in low mode, it can run for 48 hours. It’s also got a built-in 1-amp USB charging port for backup power and is equipped with an Auto On function, so when it’s charging and it senses a power outage, it turns on automatically.