Ripple Tank Strobe Light only.
This driver and LED lamp (combined unit is BEES Code 80890) is designed for theclassic overhead projection type ripple tank. It features variable DC output for the motor, and another output for the LED. Electronics in the unit measure the oscillation of the unbalanced motor to calculate the frequency of the waves it generates, and can therefore modulate the LED to freeze or slow down the waves without the need of stroboscope. Compatible with ripple tanks BEES codes 0490, 2986 and most similar ripple tanks from other suppliers.