ITEM NAME:LM2596 DC-DC Down Adjustable Power Supply Module T2U7 LM2596 DC-DC Down Adjustable Power Supply Module T2U7 Dimension (L x W x H): approx. 43 x 21 x 14 mm (with potentiometer) Input voltage: 4.5 - 40V Output voltage: 1.5 - 35V (adjustable) Output current: be earth current 2A, maximum 3A (Additional heatsink is required.) Conversion efficiency: up to z Package: 1 x Power Supply Module Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm.