Main features of PROMAGE PROFESSIONAL VIDEO LIGHT LED PM-180PROMAGE PROFESSIONAL VIDEO LIGHT LED PM-180 Colour Rendering 90 LED Accurate Temperature & Brightness Display Built-in 4000mAh Polymer Battery With USB and output, can regard as power bank and charge the cell phone Digital Dimming, Precise Control BrightnessThe soft light plate can quickly disassembled, and put it behind the video light, anti-lose.Parameter:Product Name: Promage Lumen Pocket LightModel: PM180Charging Time: Approx. 4 hoursBuilt-in Polymer Battery: 3.7V 4040mAhMax Power: 12WColour Temperature Range: 3100K-5500KColour Rendering: 90Dimming Range: 5-100%LED Quantity: 180pcsNet Weight: 180g (approx.)Battery Working Time (5600K Power Continuous Output Approx. 1.5 hours)Usage Temperature: -10-40 ‘CStore Temperature:-10-60 ‘CDimension: 150.9 *76*10mmGross weight: 320g