Our variable intensity MA964D LED ring illuminators delivers a high level of illumination over a selected field of view with excellent uniformity. The MA964D has a 60 LED Array, 10,000 hour rated lifetime, CE approved, fits 53-60mm microscope nosepiece, Wattage: 10W Transformer case: Length 150mm, width 60mm, height 83mm. Equipped with our MA964/15 Diffuser Shield which is attached with 4 set screws. The MA964D Diffuser shield is designed for highly reflective parts, circuit boards , it minimizes the reflection by 50%. It has an inner diameter of 60mm (2.36”) The ring light cord is approximately 5.5 ft. long. Auto voltage sensing power supply 115V or 240V.