Product Review
Please rotate the head loose about half circle so that it wouldn't be turn on accidentally. IYP365 is a portable pen flashlight.  There are two LEDs versions for option, Cree XP-G2 (R5) CW or high CRI Nichia. The max output of Cree LED can be reach to 200 lumens; the high CRI Nichia LED is good for peoples eyes and have a better color rendering. IYP 365 is your priority choice in medical lighting, emergency standbys, travel, EDC gears, collections or as a gift. Detailed Features： 1) Utilizes High CRI Nichia 219BT LED or CREE XP-G2 (R5) LED with a lifetime of 50,000-hour 2) 3 modes: Mid-Low-High; Two ways to change modes: press the tail switch or twist the head 3) Battery type: 2*AAA (excluded) (10440 Li-ion battery is NOT SUPPORTED) 4) Three versions for option: Aluminum (Premium type Ⅲ hard-anodized anti-abrasive finish), aircraft-grade titanium alloy and quality brass 5) Size: 128*14.512.5mm / 5.04*0.57*0.49in. (Length *Head Diameter* Body Diameter) 6) Weight: Aluminum: 23g, Ti: 32.6g, Brass: 53.6g (excluding battery) 7) Waterproof to IPX-8 standard (submersible to 2 meters for 30 minutes); Impact resistance to 1.5 meters 8) Precision aluminum alloy orange-peel reflector creates smooth, balance beam 9) High-efficiency digitally regulated circuit to maintain constant brightness 10) Fluorescent O-ring around reflector 11) Toughened ultra-clear glass lens with anti-reflective coating, maximum light transmission up to 99% 12) High quality stainless steel clip, easy to keep in your pocket 13) Multifunction tail switch for one hand operation; capable of tail standing to serve as a candle 14) Application recommendations: medical lighting, emergency, standbys, travel, EDC gears, collections or as a gift 15) Operation: Fully press the tail switch to turn ON/OFF the light (factory default: Mid); when the light is on, slightly press the switch, or twist the head to select brightness (Mid-Low-High)
