Description: Adjustable DC-DC module can be easily installed in various small equipment. MicroUSB input, easy get 5V 9V 12V 15V 18V 24V common voltage. Maximum Output Current: 2A (recommended for use in 1A) Input Voltage: 2V - 24V ? Output Voltage: 5V - 28V (Recommended for use within 26V) Efficiency: > 93% Specification: Size: approx. 30 x 18 x 6mm Package Includes: 1 Piece DC-DC Step Up Voltage Module Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks !