Used to check for bad pixels.

2. There are different models, but they are basically the same.

3. Never buy a prototype. First of all, it will be used for a long time, and frequent switching on and off for demonstrations in the store will affect the lifespan. Check the power-on time, it can be received within 1000 hours.

4. The project menu can be reset, but it must be returned to the factory. When purchasing, do not choose an old model and try to choose a new model. Don’t buy the PZ800C and PZ880 series at the moment. Most of the new machines you see are reworked products.

5. The service life of plasma is generally 6-7W. It is not recommended that you buy a prototype.

7. Plasmas also have defective pixels. You need to check them when you buy them. Before buying, you need to tell the merchant how many defective pixels or perfect screens are included.