DeWalt be know for great power tool , and this flashlight be no exception . it be power by the same 12-volt rechargeable battery pack that power other tool in the 12-volt cordless series . the light be extremely bright , and it swivel from straight to angled position . because it be pretty heavy with the battery pack , it sit solidly in position if you set it down . it be not economical to buy just the light if you do not have , or be not plan to buy , other DeWalt 12-volt cordless item , because the battery pack and charger be pricey when buy by themselves . but most of the tool in the series come with a extra battery pack and a charger .