Electricity is an honest teacher!

A few mishaps setting up the electrics, but nearly there now. Pleased to have this sorted with no help, sharing this to help others, I quite realise my first error was potentially pretty serious...

Problem 1- connecting the battery
So having realised my plan to put all the switches and breakers on the negative line failed (last electrics post), I set about undoing that setup. First I disconnected the wires from the battery and solar controller so there was no input.

Original setup
I moved all the negative outputs from the circuit breakers to the common negative connection bank. I swapped these out with the positive outputs now attached to the circuit breaker outputs.
I then disconnected the wire from the positive battery terminal from the negative input and connected to the earth block. I added a short brown wire from here to the main positive input of the main circuit breaker (bottom left of big block).
I also changed the colour of the wire looping between the individual circuit breakers positive after the main one (accross the top).
Can you spot what I missed?
Well I didn't and it was low down so out of sight. I should have moved the negative battery input to the common negative block.
So I connected the battery and the wires from the battery fried! As they were not designed for high current (27 A thankfully) the red wire quickly melted breaking the circuit and saving my bacon! Below is the evidence:

 Frazzled red wire😟

Here you can't really see but the red input wire goes to the earth block and a short brown wire is just seen correctly attached as the main input (bottom left of big block), but unnoticed is the black wire behind. This should have been connected to the negative block. 😓😖

So the red and black wires cooled down and were removed, I opened all the windows to get rid of smoke, and had a coffee break... So that was alarming but easily fixed.

A new blue wire goes to the negative block from the battery negative, and a new brown one to the earth block from the battery positive. Switched on and all is good 😅.

Problem 2- lighting
You may recall my test of the led strip lights had them weirdly dimmng along a 5m run. The cause of this became obvious with the 1.9m run I cut to attach to the wall. I saw the same thing, but this time the whole setup got worryingly hot and a small buzzing came from the dimmer switch. If you look at the earlier video you can maybe spot the error.
I had foolishly connected the red and black wires at the other end of the strip, no idea why I did this, I suppose it seemed strange to leave it unconnected.
So actually I had set up a gradual short circuit again, and the voltage ramped down along the now 3.8m length explaining why the bulbs near the end failed, and why it got hot. The current was not high enough to trip the circuit though.

Hindsight is 2020, so now I clearly see that all the bulbs are in parallel, the circuit is complete and each bulb draws very little current. I have setup 2 identical strips controlled by a single dimmer switch, the extent of the dimming seems useful but not seen dark here yet!

I have mostly installed an energy meter to monitor voltage/ current/  enrgy and power with a shunt, but this is not yet connected.