Nitecore EC11 900 Lumens Brightest Mini Cree XM-L2 U2 LED Flashlight With 1 Piece NI18350A 700mAh Battery Subcompact size that fits in palm, pocket or purse; less than 3 inch length and 1.6 oz only Maximum 900 Lumens output when use 1x IMR18350 rechargeable battery Convenient dual side mode and power switch to enable easy access to five brightness, strobe SOS Support battery type: 1x (R)CR123A or 1x IMR18350 lithium ion rechargeable battery