Dc-dc Converter, Step Up Power Booster Module. Specifications: Electrical Characteristics: The Maximum Output Current: 2A. The Input Voltage: 2V ~ 24V. The Maximum Output Voltage: 28V. Efficiency: Max 93%. Mechanical Properties: Product Size: 36 Mm * 17 Mm * 14 Mm. Method Of Use: The Module of the IN+ and - After 2~24v, IN Adjusting the Potentiometer Can Adjust Output Voltage, Output Voltage is Greater Than the Input Voltage. Matters Needing Attention: The Input Voltage Should Not Exceed the Maximum Input Voltage. The Peak Current Output Current is No More Than TV University. Package Includes: 5 X DC-DC Converter ,Step Up Power Booster Module . We are an international based seller that will ship your order from abroad, please at least a minimum 14 working days for delivery right now due to the ongoing delays in shipments globally.