High-efficiency XENO DD2 Engine born! No-PWM controlled, constant current circuit: constant brightness in each mode, Non-Flickering, no noise. XENO DD2 Engine suit for XENO G5, FARKA F8 . Features: 1/.Emitter: CREE XP-G 1B R5,CoolWhite,6500 7000K 2/.Input and battery: Rated Input of LED Driver: DC3.0 6V Use 18650*1 Li-ion rechargeable battery or CR123A*2 3/.Finished: Normal Anodized Al-Alloy Construction; Gun Metal Grey or Titanium Black. 4/.Water proof: 10 meters dunk-resistance. 5/.XENO Genuine Accessory enclosed: XENO RG03 Stainless Steel Secure Ring for glass window(Lens)-head protected and nice look. XENO LS10 Lanyard System--Mil.Spec. Olive Drab parachute cord, a XENO XRD enclosed. XENO XRD-the best Lanyard-Ring in the world—Design in vogue and Precision punched with 304# high-strength stainless steel plate. XENO L01 Nylon Cord Wrist Lanyard 6./ ultra-long rnning time 100 hours