Cree Xml Led Xml2 Led T6 U2 Q5 Driver 17mm 3.7v~4.2v Input 900ma Output 5-mode Led Driver For Cree Xml Led Emitter - Portable Lighting Accessories - AliExpress
10+ amp LED driver board. 17mm flashlight driver
Buyme 5-Mode 16Mm 3.7V Input Led Driver for Cree 10W Xm-L Xml T6 L2 U2 Led Light Torch Flash Light : Amazon.in: Industrial & Scientific
1 Mode DC 3.7V 17mm Round LED Driver Module for CREE XRE Q5 XPE XPG 3W LED Light | eBay
10W 22mm LED Driver for CREE 10W XML XM-L T6 / L2 / U2 Flashlight Light Input DC3.7-14V Output 3-3.6V 2.8A 1/3/5 Modes | Satistronics