9-degree beam angle color mixing solution.

Chromaticity Standard Deviation (SDC) indicator

Honeycomb surface Lambertian light distribution

metal halide short-arc lamp light source

Electro-Optical Separation

About Longman LED Brightness Levels-Light source

Discussion on the Method of Using Illuminance for Calculating Lumen Output in Cone-Shaped Stage Ligh

Longman Photoelectric Stage and Entertainment Product Line Introduction

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

LED Wall Washer, What is that?

A wide variety of LED lights might confuse some people. When they want to buy or replace their old lighting system, they just have no idea which LED lights can be used. There are LED PAR-cans, LED moving head lights, LED Wall washer, and the list goes on.