The NITECORE SRT9 flashlight features a high-power CREE XHP50 LED and red, green, blue and UV secondary LEDs. It can be adjusted infinitely from 0.1 lumens to 2150 lumens by twisting the selector ring located near the bezel. Color outputs and special modes are also quickly accessible this way too. It boasts a 250-hour runtime.Designed by: Li Wenjie, Wang Xi, Yin Yingmao, Zhong Shicong and Wu Shifeng of SYSMAX Innovations Co., Ltd.Contact: marketing@nitecore.com; www.nitecore.com