The power adapter is not included. DC 12V is required for this device. You will receive a random white or black accessory
This is not an amplifier. If you need an amplifier, search for AT-601W. ANTOP amplified antennas are all has built-in amplifier, and the external accessory, which need power adapter is not its amplifier, but the amplifier power controller
When the green light is on, supply the antenna with 12V power. When the yellow light is on, supply the antenna with 12V power, but with a 10dB attenuation.
If you need to replace the accessory for your TV antenna, check the label on the back. This is the "GOPI" model. If you're looking for BBPI, search for "BBPI" in the store