1. Have complete operating protection function.over temperature protection,overload protection,short circuit protection. 2. Small size, low ripple,light weight and high power density,Highly efficient. 3. Voltage stabilization, current limiting, simple operation. 4. Constant pressure and constant current switch automatically. 5. Three LED display of voltage, current and power, high . Temperature controlled fan heat dissipation, low noise, . Voltage:30V current:30V power:150W (The product printed words depending on the batch, but this does not affect use) Color:As Shown Material:plastic Package Contents: 1 * MS305M DC Power Supply 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.