12V, 3W High Power LED Assembly

NOTE: I updated some errors in the original design, including: incorrectly low resistor values (LEDs are 1W, not 1A) and reversed wiring on the 4-pin headers. Also, I moved the control header to a place where it is less likely to cast a shadow.

This is a design for a 12V LED board that hold 3 high power (1W) white LEDs. The board is sized to be fabricated by iTead studios for ~$13 for a lot of 10. Fully populated, the BOM is < $3/board with the power LEDs being the most expensive part ($0.30