Need help testing new rv solar set up.
My wife and I are on a one year road trip in our 23ft rv. We decided to add a small solar set up because we are dry camping a lot more than we imagined. We bought a 200 watt solar kit off Amazon which I installed last week. I hooked up everything and it seemed to work so I installed on onto the rv roof and ran the wires and mounted the charge controller. Everything seemed fine in the garage then I pulled out into the yard to test it. The charge controller is basic with just three led lights, one for the panels, one for the battery, and one for the load. Well the battery led is nice and bright, the load led is nice and bright, but the panel led is so dark that you have to shade it to see that's its actually on. I decided to test it and I know the very basics of using a voltmeter. I checked the voltage on the panels and they were 13 to 18 volts in partly cloudy conditions and 20v in bright sunlight, so it seems the panels are working. Next I went on the roof to check the mc4 connectors, they seemed good and tight and I opened and closed them a few times so they seem good. The only other connection is the in line 20amp fuse that I soldered in. I've never soldered before and made the connections after watching a YouTube video. After soldering the connection I shrink wrapped them so even if If my soldering was ugly i gotta think the connection is good considering the wires are soldered and compressed in the shrink wrap. The next thing I did was plug the solar panels and the battery into a cheap 10amp charger controller that i bought for a different project well in this charge controller all three lights lit up nice and bright. But the solar panel led was flickering. I'm wondering if that's because the charge controller is rated for 100 Watts max and I had two hundred watt panels wired up to it. I'm hoping you guys can help. I looked up the manufacturer is my kit and it seems to come direct from China so tech support does not exist. Sorry about the long first post and any Grammer errors. I'm typing this all out with one finger on my phone in Algonquin provincial Park which is our campground for tonight.