German phrase
Welche LEDs leuchten an ~?
Meaning
Which LEDs are lit on ___?
When to use it
Asks which LEDs are lit. Use it to identify indicator lights on a device.
Example dialogue
Welche LEDs leuchten an der Rückseite des Fernsehers?
Which LEDs are lit on the back of the television?
Die Standby-LED und die Netzwerk-LED leuchten.
The standby LED and the network LED are lit.