Fashion battery case color: black blue red silver, 4 colors for your choice Very small volume and weight The brightness can be adjustable,suitable for all kinds of requirements. Easy to fix on all of our loupes With Filter to reduce blue-light Light Spot Shape: Clear Circle Specification LED5W Intensity:15000-30000lux Color Temperature:6000K The lifetime of the bulb:100000 h Continus run-time:4 h Voltage: AC100-240V/50-60HZ Battery:Lithium Battery The brightness can be adjust 4 Color for your choose: Blue Red Silver Black With Filter to reduce blue-light Light Spot Shape:Clear Circle Net Weight:295g( Battery--90g Light Source--46g Charger--68g Cloth Case--83g) Package: Cloth case 15.5*13.5*6.5cm 0.28KG/PC Packing List Battery case: 1 each Light source: 1 each Adaptor: 1 each User manual book: 1 each PackageCloth case Package Size: 15.5*13.5*6.5cm Case weight: 0.28kg