ABS Plastic key light with Aluminum engrave panel. Powerful COB light includes 3 light settings: high beam (100%), low beam (50%), and flashing. COB is 35 lumens on high beam setting (100%) and 24 lumens on low beam setting (50%). Uses 2 button cell batteries (type CR2032), included and replaceable. Note: item ships with battery blocker, must be removed prior to use.