Baglaum Input voltage: 5.0-30 v Output voltage: 0.5-30 v Output current: can work stably at 3A for a long time, and can reach 4A under improved heat dissipation Output power: natural heat dissipation 35 W, enhance heat dissipation 50 W Voltage screen resolution: 0.01 V Current display resolution: 0.001A Conversion efficiency : about 88% Size:7.9*4.3*2.6cm Material:ABS+ metal Colour:gray Package Contents: 3 * Power module Only the above package content, other products are not included. Note: Light reflection 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.