I connected all the wires but nothing works apart from the screen which only stays on the first screen. Someone said the controller is not compatible as it is digital.Try greenbikekit.com they have a pin out diagram of a lcd8 and just join the same coloured wires together and blank off the rest.
The two controllers are different size.
This is my original controllerThe two controllers are different size.
The first link is for a normal std Hailong case , it is 15a rated and 6 mosfets.
The second link is for their large big case, it is 22a rated and 9 mosfets so the controller is longer. As already said they are different size so not compatible with each other.
In operation they carry out the exact same functions, both are signwave for 9 wire motor wire.
What you need to do is take stock of the parts you already have, esp the exact battery you have.
Show us a link or pic of every item you have bought along with connectors to save cutting any wires as this isn't always necessary.
So that you don't waste more money on buying wrong items, we can advise and give you a link to but the correct items if any are needed.
Impatience and inability to listen/read advice will get you know where bar wasting money and make you angry, possibly becoming disillusioned.
Many of us have made up individual kits from components without issues, just a case of selecting and buying compatible items.
Brown is for lamp/ligth negative .I bought this https://www.amazon.co.uk/dp/B07KWYXPRL/ref=pe_3187911_189395841_TE_3p_dp_1
Hooked the wires up red, black, blue, green yellow. But there was a brown which did not match the white on the controller. Everything lit up and worked when I pressed the buttons but the battery did not kick in when I tried it.
Well, I was just desperate and it was cheap and was also recommended here in earlier post by Wheeliepete so. Actually, you know more than the God damn kit shop in Hong Kong. If you look on Amazon seller info page it says fits most ebikes. OF course they would say that to make salesBrown is for lamp/ligth negative .
The led 790 display is analogue and not digital so not KT compatible AFAICT, it is a Kingmeter display and they are Luishi compatible.