คุณลักษณะ

• You can see the difference between DC and AC by the difference between the red and blue LED lights.
• If you hold the cable with DC or AC flowing, and turn it around, you will see that the red and blue lights alternate in the case of AC.
• The brightness of the LED and the colors of red and blue can clearly show the phenomenon.
• * A power supply with AC output is required for use.