Well I've finally done it.
I have replaced every single 912 bulb I could find in my trailer with these T10 wedge LED bulbs from command electronics.
Here's the link:
Plug In LED "Bulbs" from Command Electronics
I've turn every light on and the fan in the inverter does not come on anymore. Before with just 2 or 3 fixture on, I would ear it run.
The light output is about the same as before but the light is a little more white.
Glad I did that.
Next step, the brake lights , I received them but havent got the time to install them. And all the marker lights...
Wife thinks I'm crazy but LED are the only way to go.