Color temperature: 2500K-7000K Battery: built in lithium battery 280mAh Components: 18 LED white lights + 18LED warm light imported strengthening lamps Modes: 3 Modes Dimming: First: Cold light; Second: Warm Light; Third: Cold Warm Light, long press adjust light brightness. Battery life: charge for 30-50 minutes; Depends on the Lightning Mode Net weight: 42.5g Gross weight: 112g Ring diameter: 115mm/4.5 With the diameter of the clip: 150mm/5.9 Light circle height: 15mm/0.59 With the highest thickness of the clip: 36mm/1.41