Methods and apparatus for remotely controlled illumination of liquids in a variety of environments. In one example, remotely controlled multi-color LED-based light sources are employed to achieve a wide range of enhanced lighting effects in liquids. In another example, a pool or spa is illuminated by...http://www.google.com.tw/patents/US6936978?utm_source=gb-gplus-share專利 US6936978 - Methods and apparatus for remotely controlled illumination of liquids
