Lightweight, universal clip-on mount weighing only 1 oz. Corded with belt-clip battery pack with variable intensity control. 1-watt LED bright white light, 500 lumens. Secure clip design for all major TTL & Flip-Up Loupes. Runs on 3 AAA Batteries (one set included).- Clip-On Headlight, Includes One Set AAA Batteries (US SALES ONLY) 14-21 Days