Technical Parameters:

* Length: 33mm Diameter: 22mm
* Weight: 21g
* Illumination source :3W LED
* Illumination intensity: 45000lux-70000lux
* Color temperature: 4000-5000K
* Spot size: D=140mm to 300mm@20-50cm
* Distance: 20-50cm
* Lamp working life： 50,000 hours
* Battery： 3.7V Lithium Battery
* Battery run time >20 hours
* Battery charging time: 2hours
* Capacity: 1800mAh
* Input voltage; 100-240VAC
* Headlight main unit: 1 pc (2pc for H2N)
* Head band: 1 pc
* Battery: 1 pc (2pc for H2N)
* Charger: 1 pc
* EPE Foam package: 1 set
* Spare battery
* Astral light+battery
* Clip type or flip-up typ on spectacles
* Calilean loupe M250/M350/M450/M-4X
* Kepler loupe K-4X/K-5X/K6X
* Alluminium case