Managed to take it apart this morning and have a good look
I looked under the sticker, and tested all the connections with the continuity setting on my multimeter
(I've colour coded it to prevent me confusing myself)
The connection between each colour was absolutely fine, even though the red looked damaged/darker to the eye - it checked out a fine connection still
I'm thinking it must be the actual LED's drawing too much current as previously stated on here
Can anyone help me find a place to purchase suitable ones?
Thank you for all your help do appreciate it!