1.The flyback transformer used in the DY13 Co2 laser power supply / laser engrave machine

2.The flyback transformer only suitable for DY13 Co2 laser power supply 

3.The DY13 Laser Power Supply  has 2 piece / one pair flyback transformer. so you must choose 2 piece/(one pair ) for your laser power .

4.Please check the install schematic diagram.

5.The screw is for install fixed on the laser power box.

6.If the laser engrave machine no laser beam come out . Then you need replace a new flyback transformer for the laser power.

7.If the Co2 laser engrave machine laser power is weak , and it can’t cut through any materials . Then you can adjust the laser power to maximum value. at the same time . you check the machine ampere.If the Am indicator is still less than 8 Am. Then you need replace a new flyback transformer for the laser power supply.