Abstract: An LED lighting apparatus and a dimming method thereof are disclosed. The LED lighting apparatus is coupled to a power source through a power switch. The method includes providing a first lighting unit and a second lighting unit; detecting whether or not the power switch has been turned on; and gradually adjusting a light mixing ratio between the first lighting unit and the second lighting unit according to a turn-on duration of the power switch and storing a color temperature value, accordingly.

Abstract: This invention is utilizing the principle of repulsion between oil and water, the differences of surface tension of oil and water, and the character of melting of gelatin materials in high temperature and solidification in cold temperature to produce a biodegradable seamless BB paintball for BB guns. It contains a colored edible oil solution and is safe when it hits the target to produce an obvious mark that is edible. The seamless paintballs so produced are consistent in size and weight. It reduces the possibility of jamming during shooting and loading of BB guns which are common complaints of the conventional BB paintballs. A specially designed double nozzled machine can produce oil-in-water perfectly round and seamless droplets. The oil solution contains the dyes and the water solution contains a specially formulated gelatin. The droplets are then solidified by a chilled cooling oil flow. The oil solution comprises of 1%–5% (W/W) edible dye in edible oil.