In the PV Rolecall thread, Peacecup and I discussed the possibility of internal lighting on the PV Lusso to read the recessed sightglass more easily. I know he mentioned that he keeps a flashlight on hand for the task. There seemed something wrong with having to do that on an otherwise well thought out machine, so I installed an LED in the body. Its attached to a circuit board and mounted with adhesive foam intended for a wall hangar (command hooks).



I ran a throw switch through the sight glass hole for a temporary mount, but if this works well, I intend to drill a mount on the frame, probably between the sight glass and the manometer.





The LED is powered by two "AA" batteries, also mounted on the frame by adhesive strips. If I can find a way I would like to power it through the mains. There is plenty of room in the body for a transformer to get the power down to a reasonable level, though the element indicator bulb has no such hardware attached, so there is a suitable light out there for the given voltage.

The switch is sort of in the way, but not severely. Overall, it really helps show the water level more easily.

How about something like this that works directly off of the A/C line? I would try to mount the component board somewhere away from heat and water. I would still choose a capacitor type that can withstand the most heat along with metal oxide resistors. Try it at your own risk, of course, as I have not tried this myself.

http://www.turbokeu.com/myprojects/acled.htm

That would be the best option, This is a prototype idea, just to see if it is worth pursuing, and possibly putting holes in the front case
Now that it seems to be a worthy idea, Im really interested in making it a main AC powered system. Thanks for that schematic, Ill probably try that at some point in time.