Home Depot retail stores offers the Defiant 500-Lumen Tactical Flashlight
, model no. 809-2781-D, for $19.88
. (This link is for reference only; check store inventory using the online tool.) That's $30 under the lowest total price we could find for any 500-lumen tactical flashlight. Sales tax is added where applicable. It features aluminum construction and runs for up to eight hours. It requires three C alkaline batteries (included).