Forum Discussion

BFL13's avatar
BFL13
Explorer II
Mar 21, 2017

Panel Wattage Rating Question (Midnite Mystery?)

I am confused about how they do the panel wattage at 12v vs 24v for a controller. EG, the usual blurb seems to be that output wattage rating for an MPPT (EG Morningstar 60 amper is 800/12v and 1600...
2oldman's avatar
2oldman
Explorer II
Mar 21, 2017
BFL13 wrote:
You can't double the watts if the amps rating of the controller does not stay the same going from 12 to 24 eg.
You sort of have a double negative there, but

10amps x 12v = 120w
10amp x 24v = 240w.

I have no idea if that's your question.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,344 PostsLatest Activity: Dec 26, 2025