144 LED beads A Light source: LED Input voltage: AC110-240V Output voltage: 12V Output power: 6~8W Lamp bead Color: white Lamp holder inner diameter: 72mm Lamp holder outer diameter: 108mm Height: 20mm Number of LED beads: 64 (F3) double row, 144 (F3) 3 rows Working environment: temperature 0~40 degrees, humidity 20~85% RH The light source can be divided into four-wheel drive adjustable, used for machine vision applications on stereomicroscopes, monocular microscopes, and automation equipment. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC100-240V Color: Black Material: plastic Package Contents: 1x LED Lamp Ring 1x Power line 1x Light source regulator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.