Variable Intensity LED Ring Illuminator with 72 LED's in two rows; fits 28mm - 60mm objectives. Electronic Switch allows LED's to be selected in 1, 2, 3 or all 4 quadrants. The illumination is focused to about a 1" diameter spot at 100mm working distance, and therefore is about twice as intense as more diffuse ring lights.
Martin test rating: 54,000 lux