Okay, got the microswitches the other day so time to get started.
First I lined up the switches where I wanted them and secured, next I removed the closet light lens and switch, and fished out the existing wire twist connectors. The 12 volt hot wire (black wire on my coach) will be tapped into, the other (white) ground wire including twist connector will not be touched. I then measured how long to make the pigtails and crimped the butt connectors and terminal clips.
The microswitches can be wired in the switch open or closed configuration. I used a volt meter to find the correct switch position. Probably a good idea to wire it up to have the light come on when the door is open instead of closed
The closet has 2 doors and I wanted to be able to open either/both doors for the light to turn on, so the the pigtail is crimped onto the hot 12 volt wire (before power gets to the lamp). The 2 female slide terminals on the pigtail go to the left switch and other to right.
Using the other pigtail I connected the slide terminals to the right and left switches and crimped the butt connector to the lamp's black lead.
That's it, all done!
Total cost for this project $1.50
I had the wire and connections laying around so only had to buy the switches from ebay. $7.50 for 10 switches including free overseas shipping.
I was surprised with the good quality for price paid. The switches are made in Japan and rated for 15 amp operation at 120 volts.