918A 12V TTL Step-down Laser Diode Electronic LD Power Supply Driver Board StageOOTDTY  brand new and high qualityMaterial: Electrical componentsColor: See picturesSpecifications:Circuit control: 12V step-down circuit, constant current output (current and voltage are all can adjustable)Output Specifications: Max 3AInput voltage: 8-14VScope of application: 200mW-3W 405/445/450 / 520nm red, green and blue laser drive powerComponent height: 13mm (including power board)Features：for the laser driver, it can be used for various types of Reduced voltage constant current source.AC / DC can be used, regardless of positive and negative input to improve the non-professional user convenience.Widely used in a variety of stage laser light with TTL modulation, can work long hours.Size: See the pictureQuantity:1PcNo retail packageNote: Due to the difference between different monitors, the picture may not reflect  the actual color of the item. Thank you!!