LED水下灯(改良的二极管阵列灯) 
LED Underwater Lamp (Improved LED Array Lamps)

　　发光二极管(LED)阵列由于具有能耗低、寿命长、发光颜色鲜艳、穿透性和环境耐妥性强，可长期高效工作，并可以适应音乐喷泉频繁启动等优点，因此在光学应用中越来越广泛使用。如城市光亮工程、交通指示、喷泉水下灯等等场所都得到大量应用。
　　水下灯利用阵列供电，把普通稳压供电改为恒电供电方式，使流经阵列各LED的电流恒定在LED额定工作电流区间，大大提高了供电的可靠性，满足LED对电源的高要求，确保了使用寿命，安全、节能、无事故，一般需用电压12-24V，耗电功率3-5W。

　　The LED array has advantages of low energy consumption, long service life, dazzling colors, strong penetration and environment resistance, high efficiency and suiting frequent switch on/offofmusic fountain, therefore it is widely used in optical applications such as brightening project in city, traffic indication, underwater lamps for fountain and so on.
　　The LED array underwater lamps changes normal voltage-stabilized power supply into constant current power supply to make current running through all LED be constant between the rated operation current of LED thus to raise up the reliability of power supply, to meet high requirement LED towards the power supply, to ensure service life, safety, energy-saving and free of accident. Normally it needs a voltage of 12-24V with a power consumption of 3-5W.