“With HIGH OUTPUT and PROTECTED ATTACHMENT. Powered driven by REDLITHIUM USB, this Milwaukee USB Rechargeable Hard Hat Headlamp produces 475 lumens of TRUEVIEW High Definition results, and has the ability to run all-day with over 2,000 recharges and approximately 3X quicker charging via USB. Improved for use with hard hats, it comprises of a slip resistant strap and the clips ensure easy and secure attachment. Its water, dust and drop resistant body and lens enable it to survive the roughest conditions. Get the highest control over your output, beam coverage and runtime with the help of five different modes, flood, spot and spot/flood beam patterns, and approximately 31 hours of runtime. The REDLITHIUM USB Battery can be recharged in the light using Micro USB or exchanged out with additional REDLITHIUM USB Batteries for nearly zero downtime.
• Product Dimensions: 3.8 x 2.2 x 1.5 inches ; 0.16 ounces
• Shipping Weight: 13.6 ounces
• ASIN: B0775FVML3
• Item model number: SG_B0775FVML3_US
• Batteries 1 Lithium ion batteries required. (included)”