Скачать или смотреть Inside two tornado party/disco lights.

A look inside some common ebay home disco or party tornado lights. These lights have 48 individually controlled red, green and blue LEDs around the perimeter that project beams of light out onto the surface they are on. The lights are sequenced by chasing every third LED for a single colour effect or combinations for multi-colour effects.
The unit uses an anonymous 8-pin microcontroller to feed the pattern data to a string of six cascaded 74HC595 serial to parallel shift registers, probably using a clock, data and store line to load in the full 48 bits of data before latching them to the outputs.
A microphone is used with a bit of support circuitry to allow audio transients to pulse one of the processor pins to reverse the direction of the pattern. (It took me a while to realise what that mic was for)
The mains operated version uses a neat HOTCHIP 3 pin switchmode driver with minimal support circuitry. The blue "class Y" style capacitor is not for RF suppression, but is part of the primary winding transient snubber network. (A diode passing the reverse spikes to the capacitor which then has a discharge resistor across it.)

These lights plus some other interesting stuff were sent to me by Judd, who is an Australian living in China. He has an Alibaba shop at http://www.anboge.com/ or the direct link is:- http://anboge.en.alibaba.com/
You can contact him via the message box at the bottom of that page. Judd is a native English speaker which will help greatly if you need any specific Chinese products.