A perfect matching ON-AIR light for all BROADCAST mixers. You can of course use the unit too for other brands. We call it ON-AIR Lamp but actually there is no lamp inside anymore, just everlasting high intensity red leds. The unit is powered by a 12 volt DC 1 Amp external power supply. And what’s more… no hassle with how do I connect this thing to my AIRMATE-USB/AIRENCEUSB/AIRLAB or AXUM. No complicated high voltage AC switching with external relays etc. etc. What you only need is one stereo cable (wired tip/ring) coming from the MIC-ON connector on the back of the AIRMATE/AIRENCE/AIRLAB console that goes directly hardwired to a barrier strip inside the ON-AIR LIGHT. How easy is this for a change. The power adapter (included in the delivery) will also be directly wired to the barrier strip inside the unit.