12V TTL 200mW To 3W 445nm 450nm Laser Diode LD Power Supply Driver Board Description: Input Voltage:DC 8-14V Max. Output Voltage:DC12V(adjustable) Max.Output Current:3A(adjustable) Complicable Laser Diode:200mW-3W 405/445/450/520nm Size:49X29.2X14.5mm(L*W*H) Feature: Laser diode power supply driver board Support large power laser diode Equipped with multi type ports(TTL,cooling fan,LD) Constant voltage and current output,safer for laser module Both voltage and current are adjustable;Perfect for laser module constant power supply usage Package included: 1X Laser Diode Power Supply Driver Board