Lumen Optical Instrument Co., Ltd.

Lumen is an original manufacturer who has engaged in optical instrument industry for 2 years, but our team includes seasoned engineers (more than 10 years experiences) and skilled workers. Our workshop is nearly 900 sq. m., and the product line mainly include high quality handheld, digital, gem refractometer and fiber hand-held microscope. We have in-house quality control, and keep making effort in technical advancement. We dedicate ourselves to develop products to be customers' best buy.