RGB LED disco party light
(Reverse Engineered Schematics)
Schematic of the RGB LED disco party light.
It contains red, green, and blue LEDs as well as a disco globe (dome) that rotates slowly thanks to a motor with a gearbox.
It projects moving color beams. Rated supply voltage 230V 50Hz 3W. Sold in versions with E14 or E27 base. Price is 149 CZK (roughly 6 or 7 USD).
The power supply is very simple - only a capacitive dropper with a 3.3uF 400V capacitor.
The measured real power is 3.1W and the apparent power is 58VA. The power factor is therefore only 0.053.
The circuit is not isolated from the mains, but everything is contained, so it should be safe. There is also a fuse and a metal oxide varistor.
RGB LED party light in a box.
RGB LED disco light.
RGB LED party light in operation
RGB LED disco light - marking.
LED party light - the dome removed.
The capacitive dropper power supply.
the power supply board from track / SMD side.
The internals of the RGB LED party disco light.
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