Chromaticity Standard Deviation (SDC) indicator (2023-12-04)

Honeycomb surface Lambertian light distribution (2023-11-28)

metal halide short-arc lamp light source (2023-11-28)

Electro-Optical Separation (2023-11-22)

About Longman LED Brightness Levels-Light source (2023-11-22)

Discussion on the Method of Using Illuminance for Calculating Lumen Output in Cone-Shaped Stage Ligh (2023-11-21)

Longman Photoelectric Stage and Entertainment Product Line Introduction (2023-11-21)

Longman's brand theme is "Shaping Stunning Visuals with True Colors and Smart Lighting." The product line includes

Happy Chinese New year 2023！ (2023-01-11)

Product launch at Westin Pazhou Hotel at 04th, August 2021 (2021-08-03)