The Milwaukee 600 Bolt Lumens LED REDLITHIUM Headlamp is a dedicated solution for our BOLT hard hats and helmets and is fully compatible with all BOLT accessories. Powered by REDLITHIUM USB, this Headlamp provides HIGH OUTPUT lighting that stays brighter for longer. The Milwaukee Headlamp has four light output modes High, Medium, Low, and Eco for 32 hrs of runtime to maximize light output or extended runtime. The Light is IP54 rated for water and dust resistance and can withstand up to 2M drops,surviving the toughest conditions on and off the jobsite. The Milwaukee REDLITHIUM USB battery can be recharged in the Headlamp via USB-C or swapped out with an additional REDLITHIUM USfor virtually no downtime.