This is a decommissioned outer marker light. This particular light I currently only have one of so the photo is the one you will receive.
 
The light will show green for VFR, blue for MVFR, red for IFR, and Violet for LIFR for your selected airport. The brightness is adjustable. In the set up menu. There is also a schedule feature to allow you to have the light turn on and off at a certain time in the day.
 
Wi-Fi is needed for the lamp to function. All the settings will be accessible via Wi-Fi.
 
Not all airports have automated METAR information. You may need to select an airport closest to you.
 
This is a novelty item it is not meant to be used for flight planning.
Comes with a 6ft usb cord.