Specifications: Diameter of lamp head: 500mm Light intensity at 1m distance: 50K Lux Color temperature: 3800±500 K Color rendering index: 80 % Ra Light field diameter: 150±35mm Illuminance depth: ≥450mm Light source: Tungsten Halogen Light Bulbs Brightness adjustable: Yes Power transforme: AC110-220V/50Hz Weight: 30 kg Package size: 109*64*29 cm Package: 1* Mobile Shadowless Operating Lamp