These light sources can be used for a variety of experiments, as well as together for colour mixing.
In red, blue and green with magnetic backs, they can be attached to a whiteboard. Each device requires 2 x AA batteries.
Pack size: 3
Length: 11 cm
Width: 12 cm
Age Range: Suitable for 3 to 11 years
27 Mar 2017
The magnets on these torches are not strong enough to support their weight on a vertical surface.
The colours are slightly off and do not combine to white.
Each torch has a significantly different intensity, hence, the best possible combination (still not quite white) can only be achieved by arranging the torches at different distances from point of beam intersection.
Good idea, very poorly executed. the only reason I am not returning these troches is because I have just used the time I had allocated to repackaging them to write this review.