12V TTL 1W 2W 3W 445nm 450nm Laser Diode LD Driver Power Supply Step-down Constant Current

Features: 

Circuit control: 12V step-down circuit, constant current output (current and voltage are adjustable)

Output specifications: Max 2A

Scope: 200mW-2W 405/445/450 / 520nm red, green and blue laser drive power

Size: 29 * 49mm (width * length), component height with plate 15.5mm

Input voltage: 8-14V