I am planning on using some quite big LEDs on Swift to point out of the front of the robot to create a bit of a 'headlight' effect.
Unfortunately, not having any clue about LEDs, I have no clue what sort of power levels are required, and finding reasonably sized, unidirectional, available-in-a-pleasing-variety-of-colours LEDs that will run happily on 12V has not been going well so far - the main market appears to be car mods, and I'm a bit wary of those due to quality and current consumption.

Can anyone from the general hivemind share what they've found or would advise?