Features ADJUSTABLE VOLTAGE：The module after IN + and ‑ 2~24v, the IN adjustment potentiometer can adjust the output voltage, the output voltage is greater than the input voltage TECHNICAL PARAMETERS: Maximum output current is 2A, input voltage from 2V~24V, maximum output voltage is 28V, efficiency more than 93% PRACTICAL AND PRACTICAL: The product is small and powerful, useful and practical, provide great convenience for your life 5PCS IN TOTAL: The package contain a total of 5pcs boost module, enough for you to replace and use, very convenient DURABLE MATERIAL: Made of high class material with excellent quality, durable for a long service life Specification: Item Type: Boost Module Material: Plastic, copper, iron Package List:5 x Boost Module Package List 5 x Boost Module