Overview: This LED Driver Circuit Board is manufactured specifically for Cree & Seoul Semiconductors high powered LED emitters (Q3, Q5, R3, R5, MC-E, SST-50 & P7 LED) The Red wire should be connected to the positive & the black wire to the negative Preinstalled wires are very thin & surface mount only You are bidding for one 10W high power LED driver This LED Driver Circuit Board fits for 3~10W high power LED flashlight It is a 10w LED driver circuit Board with 3.0~18.0V input voltage & 1200m A output, 17mm Dia. With this simple Regulated Driver Circuit Board & easy-to-find components, you can convert bulb flashlights into energy-efficient, bright LED flashlights Input Voltage: 3.0~18.0V Current: Digital Regulated 1200m A Current Output Package included:1 x 10W LED Driver Circuit