I've received the wrong light bar for my Ender 3 v3 se, it came without adapters and the wrong wire connection.
There are complete LED holders exist, but I did not find the adapter itself to use with the original Creality to use the thing I received
You will only need 2 nuts, the bolts were packed in with an led bar
I liked the idea of hidden wires to I drilled (4-5 mm) a top plastic frame to get to the hole in the aluminium profile and directed wires there. To know the exact place for drilling, put the printer on the side and you will see that the bottom parts have holes.
The author marked this model as their own original creation.