Tips: 1. It is The BEST WF502B Housing Case In The Market. 2. High Quality,not those cheap kind,you can compare,Suit for those wholesalers 3. If you buy more than 20pcs,we send them by two packages,not one package, Features: Mini,portable,and also powerful Strong transmission of light, professional design, balance and pure white facula Suitable for household use, climbing, camping, seeking survival, walking, diving, fishing as well as hunting, etc Specification: Model: WF-502B Body Color: Black Emitter Brand/Type: 10W (6000-6500K) Light Color: White Total Emitters: 1 Material : Aluminum alloy Battery Configurations: 1 x 3.7v 18650 or 2xCR123A/16340 (not included) Voltage Input: 3.7V~18V Switch Type: Clicky/Clickie Switch Location: Tail-cap Modes: 1 1 Mode:High(ON/OFF) Brightness: 1200 lumens maximum brightness (manufacturer rated) Reflector: Aluminum Textured/OP Dimensions: (13.2 cm x 2.6 cm x 2.6 cm) Weight:100g Package Includes: 10 x High Quality WF-502B 10W LED 1 Mode Portable Flashlight With Clip