With a twelve volt transformer and led how to do small beads
LED lamp transformer for twelve volt, 12V AC voltage transformer rectifier to a DC voltage of 12V, LED series three, three, and then connected in parallel, connected with the current limiting resistor and then connected to the 12V DC power supply.
With LED lights instead of fluorescent light source, to do ceiling lamp, the advantages are obvious. 15W can replace the brightness of fluorescent 30W;
Recommend a price cost a few you can use high brightness LED lamps scheme: LED replace the module /LED ceiling lamps transformation board, this is one that has brought LED driven lighting module, the direct use of 220V voltage can be lit. At the same time, the LED lamp board is equipped with 3 strong magnets, can be tightly attached to the ceiling of iron shell; LED driven back with strong double-sided adhesive can be firmly fixed in the lamp drive LED.
If it is an inductive ballast, it also needs to be illuminated before it can be lit. At the same time, the effective illumination angle of the ceiling lamp is 180 degrees. For the 360 degree fluorescent lamp tube, about 1/3 of the light is wasted
Ceiling lamp is a kind of lamp commonly used in home decoration, and the energy saving light of traditional circular fluorescent lamp is lower
