The simplest way to determine the quality of light

This way of checking the quality of lighting in our home, or anywhere else, is extremely simple, cheap, and mobile

mircemk

Quantity		Component name
1	×	Solar Cell
1	×	Small Audio amplifier module
1	×	Speaker: 0.25W, 8 ohms
1	×	Capacitor 10 µF
3	×	AA Batteries