18650 battery Led light 5000 lumen flashlight   Product Description   Company Information  Guangzhou Precision Optics Technology Co.,Ltd. is one of the leading manufacturer of hightech products with import and export qualification in Guangzhou,China. Factory possess of around 300 of workers, including a group of proficient senior engineer, senior technician, technicians and craftsmen, etc., who are all with rich experienced skill for optical instrument products designing, manufacturing, assembling and testing. We are also wellequipped with the modern optical instrument production lines, precise test machine, scientific and sound management system.