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Constant Current Ouptut
A constant current LED driver changes the voltage throughout the electric circuit to maintain the continuous flow of current. To make it easier, you can say that a constant current LED driver will have a fixed output current and variable voltage output. LEDs designed to work on constant current drivers need a designated amount of current for proper working.
These types of drivers keep the current constant throughout the LED installation by fluctuating the voltage value. The LED light will be brighter with the higher current flow, but if the current flow is not regulated, it will cause the burnout of the LED. This thermal runaway will reduce the LED life span and its quality. For this reason, constant current drivers are so crucial for an LED.
There is no doubt that LED should be driven by a constant current source due to LED special V-I characteristics. Due to the much higher efficiency, constant current LED Driver is the mainstream for general lighting like bulbs, linear lights, downlights, street lights etc.
IP67 Waterproof
LED drivers for outdoor lighting requires a high waterproof level, IP67 is necessary for street lighting and sports lighting applications. Upowertek LED drivers use aluminium casing, rubber seal and waterproof AB glue to make sure high waterproof performance.
NFC Programmable
This function is one of the key features the LED lighting era brought because of the too many combinations of LED chips for different design purposes. The ability to adjust the output current is a key demand for LED drivers. In the early stage, a pot-meter was used for adjusting but gradually users found the small device is not reliable and low IP rated. Then programming by infrared controller appeared for a very short period of time because the LED drivers has to be powered on when doing the programming. And from the year 2015, cable programming without powering the LED Driver became the mainstream way to program and the drawback of using the extra cable and doing extra wiring was overcome by NFC programming which is employed by Signify and Upowertek.
