Optosupply 5mm superbright cool white diffuse current regulated LED

These are very nice cool white diffuse LEDs from Optosupply which have inbuilt constant current drivers, so you don't need resistors.

Rated output is 5,800mcd at a 30 degree beam angle at a typical current of 14mA.

Use them on their own, or in series with other LEDs to control the current in the whole string.

Part number is OSW5DK5A32A-CRLED14 and datasheet is here.