High power LED incandescent or CFL lamps can provide can not provide a long working life, low power consumption and low maintenance requirements, these factors make the LED in outdoor applications is becoming increasingly popular. However, LED is a sensitive electronic components, it is very easy to be off the system, electrostatic discharges and transients caused by nearby lightning overvoltage and overcurrent damage. In addition, the drive LED switching power supply does not provide LED lighting electronic ballast inductive transient overvoltage or overcurrent protection.
       In order to meet the needs of high-power LED lighting applications, LED is usually designed to 5-20 in series, because the power of single LED can not do much due to thermal issues. But the problem is, as long as the structure of any one series LED fails, the whole string will be along the fault LED. In the street or airport runway lighting applications, LED string lights out failure could lead to an overall brightness dimmed or completely black, causing unimaginable security issues. In outdoor LED advertising display applications, this may produce white spots and cause revenue losses. In any of the above application, the string of LED failure often results in outdoor applications costly maintenance problems.
       To solve this problem, I follow the world's leading technology company, is successively Bourns, Littelfuse (special forces), TE (formerly Tyco Electronics), Vishay Semiconductor and other international semiconductor chip industry leader after mine, the first in the country introduced LED protection elements of the old brand. Also, the Division I uphold the original advantages of integration from the chip to the package, so will be a higher price to win market!