Installing a Cabinet Auto Light.

For my electronics cabinets, I always have a need for internal lighting anytime I need to inspect or make modifications to the components inside.

Here is how I did it.

Led and Switch.

I used an led capable of AC and DC input. This module is actually for cars and uses 2watts.

The momentary push button switch allows for the auto light feature.

Attaching Leads to the Switch.

This switch has both NC and NO contacts. I need the NC for my needs. I soldered wires onto the relevant pins and now for the next step.

Wiring the Led to the Switch.

Again more soldering and I wired the switch in series with the led so that it can open one of the supply wires. The polarity of this led module is a non issue since it can work with AC power.

The Cabinet.

This cabinet houses my home automation system. I will take a 25v dc supply from the M4 atx power supply input terminals.

Wiring in the Light.

Carefully unscrewing the terminals, inserting the light wires then screwing back tight the led comes on. I secured the led module with a cable tie so now the insides of the cabinet is bathed in light.

Sticking on the Switch.

Using evostik I glued the switch into the inside of the cabinet. The position of the red switch head is such that when the lid closes fully, the led goes off.

Completion!

Now I have an automatic led light for my automation pc cabinet!