LED lamp with drive, do you want the transformer?
Don't need transformer, directly with driver. You put the Led and transformer connected to be you of the transformer output voltage and lamp circuit, there is no through rectifier and filter, Led to the power demand is higher, with dc drive and are within a certain range of voltage and current. Look at your situation should be burned Led lamp bead!!!!!!
LED to shoot the light with the drive is 220 v alternating current through the resistance capacity step-down rectifier to provide LED lights, electric current and voltage and therefore it is no longer need transformer. When the power is generally in the small current are commonly used resistance capacity step-down, instead of the transformer step-down.
There are two kinds of leds to shoot the light, the 12 v power supply voltage and 220 v power supply voltage. If the power supply voltage is 220 v, without additional transformer, lamp has a built-in transformer. If it is a 12 v power supply, need another 12 v power supply, general ac dc, but never can directly connect the 220 v power supply.
