... lamp 2. ring lamp 3. power: 8 W Microscope Fluorescent lamp Microscope ring lampCompact structure, nice looking, low heat, soft lighting1.All ... . Using high quality electronic component, because of the ring design, illumination section have no shadow.4. The maximal joint size is ... is 8W. Input voltage: 110V/220V/240V, you can choose. microscope fluorescer lamp