Overview: This LED Driver Circuit Board is manufactured specifically for Cree & Seoul Semiconductors high powered LED emitters 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 9W high power LED driver This LED Driver Circuit Board fits for 3~9W high power LED flashlight It is a 9w LED driver circuit Board with 3.0~9.0V input voltage & 1000m A output, 20mm 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: 3.0~9.0V Current: Digital Regulated 1000m A Current Output Package included:1 x 9W LED Driver Circuit Board