PRODUCT DETAILS:
- Powered by 2 AAA batteries( Not included).
- Dimension: 13.5cm(L)*1cm(Dia)(Approx.).
- Made of anodized aluminum alloy.
- Clip to hold it on your uniform, easy to carry.
- LED Bright clear light.
- Push-button on/off switch.
- Low power consumption and long use time.
- Pupil size printing on the surface for reference.
- Weight: 20g .
Light bulb: LED 2.2V White.
Dimensions: Diameter 1cm,length 13.5cm .