size 1 means US Chargersize 2 means US Charger+EU Adapter Feature:- This is the 12000lm 8x XM-L T6 LED super bright flashlight made from high quality 6061T aluminum alloy， this flashlight is sturdy and durable enough for a long time use.- Super bright， blinding effect.- With a lifespan of up to 100，000 hours or more， no need to consider replacing the cap for the whole life.- It is waterproof， but do not put it into water long.- Crenellated strike bezel for enhanced self-defense.- It is suitable for biking， camping， backpacking， hunting， fishing， emergencies and home repairing. Bring with a neck rope， convenient to carry.Type: CREE XM-L T6 LEDLED Quantity: 8Luminous Flux: Max output 12000 lumensSwitch Location: MiddleWaterproof: Yes， IPX-63 Modes: High / low / strobe(long press the button)Material:- Aluminum alloy case- Coated glass lens- Aluminum smooth reflectorPower Source: 4 x 18650 3.6V/3.7V Battery(Not Included)Lifespan: 100，000 hoursLight Color: WhiteColor: BlackProduct Size(Dia x H): 60 x 135mmPackage Size: 150 x 75 75mmEPC_LEF_032Package Include:1 x LED Flashlight1 x Charger4 x 18650 Battery