“Great selection and good quantities, but I think the blanket spec of "Assume typical ratings: 2.2V @ 20mA" is a little misleading. E.g. Those numbers suggest two LEDs in series with a 30Ω would be spot-on for a 5V supply (and may well be, for some colours). For the white LEDs, the result pulls less than 1mA and is very dim. The "Diffuse 5mm LED pack" has links to individual data sheets, stating they (and blue) need more like 3.2V. Check your colour choice before making any design decisions.”
