Features:

This tool is designed to help demostrate how our new lens can block the 400nm-420nm range of high energy visible(HEV) light in addition to UV light.

UV light: 375nm

Laser light: 405nm

Blue LED: 470nm

Green LED: 520nm

Yellow LED: 590nm

Red LED: 620nm

Batteries and AC adapter are both available.

Dimension:36*24*15cm

Weight:1.4kg