Puzzler for you electrical gurus....
A year ago I bought a 12v LED light strip (18" long) and mounted in the van I use an another RV. I like it so much I bought a couple more of them to use to mount in my Bigfoot pictured below. These ...
Forum Discussion
OK... not a guru, but still feeding back to you based on your observations:
You state: "I unplugged the camper from shore power and now the light strip works! When I plugged it back in the light strip went out. Now, why would that be?"
Check the leads with the camper on shore power and use the voltmeter on the 120V AC setting to verify if it is 120A and not 12D being supplied. Perhaps there is some weird "auto switch-over" to 120 when plugged in that is not there when disconnected. Perhaps it reverts to 12DC when unplugged on that circuit.
ON EDIT-
I reread where you also state: "Voltage is the same at the leads whether or not the camper is plugged in!"
upon reading that I am stumped too!
Could there be some sort of current sensor on the LED's? That is, there perhaps is higher current available at 12V when plugged in that is not available on the house batteries??? I do not know what else could be causing an on/off switching condition between shore and 12V power inputs.
This is a good one!
You state: "I unplugged the camper from shore power and now the light strip works! When I plugged it back in the light strip went out. Now, why would that be?"
Check the leads with the camper on shore power and use the voltmeter on the 120V AC setting to verify if it is 120A and not 12D being supplied. Perhaps there is some weird "auto switch-over" to 120 when plugged in that is not there when disconnected. Perhaps it reverts to 12DC when unplugged on that circuit.
ON EDIT-
I reread where you also state: "Voltage is the same at the leads whether or not the camper is plugged in!"
upon reading that I am stumped too!
Could there be some sort of current sensor on the LED's? That is, there perhaps is higher current available at 12V when plugged in that is not available on the house batteries??? I do not know what else could be causing an on/off switching condition between shore and 12V power inputs.
This is a good one!
