Light source F, with super-bright LEDs

Very light-intensive light source, for demonstrating the image size and width ratios at the pinhole camera;
super-bright LEDs in F-shape in plastic housing, battery-operated, with on/off switch, sliding saddle.

Optical axis: 58 mm
Dimensions: 60 x 16 x 100 mm (without sliding saddle)
Power supply: 2 AAA batteries (included)
Mass: approx. 109 g