ITEM NAME:5Pcs MT3608 2A DC-DC Step Up Power Apply Booster Power Module for Arduino 2V-24V Product Description Description: Specification: The maximum output current: 2 a The input voltage: 2 v ~ 24 v The maximum output voltage: 28 v Efficiency: ≠¤93% Product size: approx. 35*15*6mm/1.37*0.59*0.23'' Single weight: approx. 15g Quantity: 5pcs 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 Note: The input voltage should not exceed the maximum input voltage. The peak current output current is no more than 2A. Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Included: 5 x Booster Power Module.Quantity: 5pcs. The peak current output current is no more than 2A. Included: 5 x Booster Power Module. The maximum output current: 2 a. Due to the different display and different light, the picture may not reflect the actual color of the item.