Zhongshan City Lu Feng Lighting Technology Co. Ltd.
Spark Industrial Zone of Zhongshan Xiaolan Town Wansheng Wanhua Lane 1
Contact: Mr. Haruto
Most manufacturers solution (220V directly to tree lamp power supply)
(220V power supply is supplied by tree lamp after voltage transformation through LED.)
At present, most manufacturers adopt the following two programs.
1, 220V input through the bridge rectifier, directly to the LED power supply.
2, 220 input through the transformer into 24V or 54V, and then through the bridge rectifier, power supply to the LED.
The two schemes have no voltage stabilizing effect, and if the input voltage fluctuates 10V, the corresponding current fluctuation through LED is 10mA.
Our company adopts LED crystal tree lamp special switch power supply to LED power supply
220V input, access to LED dedicated switching power supply to the LED. In this way, the 24V, 36V or 48V DC power supply can be fixed, regardless of the input 180V or 250V, through the LED special switching power supply.
1, if the city power supply without voltage regulator, or grid voltage instability, LED through the current can not control, and its life can not be controlled.
2, if the voltage fluctuations are too large, will be faced with the possibility of burning the whole tree LED.
1 、 input 180V ~ 250V voltage, the working current of LED is stable, and fully guarantee the life of LED. If the voltage fluctuates too much, the damage is only the switching power supply.
2 、 built-in potential adjustment, can fine tune the work current of LED, change the brightness of crystal tree lights.