When the traditional white light ray boxes do not provide strongenough rays to be seen across a classroom of ambient light then we recommend this 635nm wavelength, 3/5 ray, monochromatic (laser) ray box, power
$ 44.08
$ 57.30
$ 44.08
$ 57.30
When the traditional white light ray boxes do not provide strongenough rays to be seen across a classroom of ambient light then we recommend this 635nm wavelength, 3/5 ray, monochromatic (laser) ray box, power
$ 55.00
$ 16.00
$ 72.16
$ 55.51
$ 25.00
$ 88.14
$ 67.80
$ 19.00
$ 81.09
$ 62.38
$ 76.36
$ 58.74
$ 57.00
$ 19.00
$ 18.50
