Qudratisch, handy flimmerarm

Subject dimmer BU95.
The imprint on the front panel are 12V to 24V.
The dimmer operates from 0% to 100%
The PWM frequency is 641Hz. This dimmer is quite flimmerarm.
In the zero position in the flow dimmer ca. 10mA, which at 12V means a rest consumption of 0,12W. The light is then completely.
At 100%, the light is on all. It then only remains of the voltage drop across the FET.
The building makes a solid impression. Ordinary board terminals. Many solder joints look like hand-soldered.
It is a NE555 and a LM358 used what else can a hobbyist open some possibilities.

As MOSFET serves a 2SK2232 with RDS (ON) = 36 m (typ.) And ID 25 A; 60V. Also properly dimensioned. In 8A, the voltage drop should therefore was under 0.3V and the power dissipation of the FET delivery time (reproducible) 1 Week as a manifesto clearance by eachbuyer.com. That's pretty fast for such a direct import from the Middle Kingdom.
My recommendation has the equipment and the dealer.