The specific methods for replacing the light bulb of the Opple brand Yuba are as follows:

1. Turn off the power of Yuba and disconnect the power plug. Wait at least 3 minutes for Yuba to cool completely to prevent burns.

2. remove the bulb protective cover. There is a transparent plastic bulb protective cover at the bottom of Yuba, and it needs to be removed by unscrewing four screws to fix it. Some models lift the protective cover up and remove it.

3. position the bulb device. The light bulb and its power supply device can be seen in the protective cover. First, make sure the model and specification of the light bulb, generally GU1 or E27, and choose the matching light bulb.

4. remove the faulty light bulb. Open the filament clamp by hand, or unscrew the faulty bulb by turning it clockwise. Be careful not to touch your hands. You can wear protective gloves. Be sure not to touch the filament and lamp holder after pulling out to prevent electric shock.

5. install a new light bulb. Tighten the new bulb to the lamp holder in the original direction. Make sure that the light bulb is in good contact with the lamp holder, and gently pull the light bulb to test whether it can be removed after tightening.

6. Install the bulb protective cover back and test it. Replace the protective cover to its original position and tighten the four fixing screws. Turn on the power of Yuba, and turn on the switch to test whether the new light bulb lights up normally and the brightness is normal.

7. it can be put into use after it is confirmed that there is no abnormality. If it is found that the brightness of the new bulb is too high or too low, it should be replaced with a bulb with the correct power specification in time.

the above is the standard operating procedure for replacing the bulb of Opple brand Yuba. However, for different styles and models of Yuba, the light bulb device structure may be slightly different, so you can refer to the instruction manual of specific products for operation. If you need on-site service from professional technicians, you can also contact Opal's after-sales service department directly.