Brand : Keeler
Area of View45 ° ± 5°.
Pupil Range 52mm ~ 74mm.
Modifiable Variety of the Head FrameHead Border: 530mm ~ 630mm.
Headband520 ~ 640mm in area,85 ~ 125mm comprehensive.
Light Places Huge spot, mid area and little place.
FiltersRed-free, white, cobalt blue and also settlement.
Illumination Resource 6V/10W Halogen Bulb for Air Conditioner Powered, and LED for Rechargeable.
Input VoltageAC 100-240V, 50/60Hz.
Dimension of Key Part142mm × 48mm × 128mm(long × breadth × high).
Weight = 320g (omitting the head structure).