Shenzhen Brightness Electronics Technology Co., Ltd. is a high-tech enterprise. We have been specialized in the R & D, production and marketing of Security and Protection Products. Products include access control system (including Electromagnetic Lock, Electric Bolt Lock, Electric Control Lock, Access Controller, Access Control Board, Access Reader, Fingerprint Products), Video Door Phone, and Guard Tour System. Since our establishment, adhering to the business principle of "based on honesty ...