Lumenera LT425 blinking LED orange / green

Why the LED on Lt225 or Lt425 camera blinks between yellow and green ?

When the LED on Lt225 or Lt425 camera blinks between yellow and green after
connecting to an USB 3.0 or USB 2.0 port, it usually means the camera is working
in USB 2.0 mode and an external power is required for camera to work properly.
Options to supply the needed external power:

1. Using a 5VDC @ 700mA power supply via Hirose GPIO connector.
   You can order La2000PK or La2000PIOK (if you need GPIO access) from
   Lumenera. This includes the 5V power adapter and the Hirose connector.
2. Using an USB3.0 Y­Cable to deliver more power to the camera. The Y­Cable
   should be available from a local electronic store