1.Equipped with For interface - proof discharge tube. It has For interface protection function, making the machine work more safely. 2.With a surge current NTC. Inhibit circuit inrush current, so that machine work more stable. 3.Equipped with fuses, it has short circuit protection function. 4.It has indication function, and screen printing marks on the board, easy to use. 5.This rectifier Board input 0-220VAC, output 0-311VDC, and Output current is 10A Product name: rectifier board Model: AC - H10A Input voltage: 0-220V AC Output voltage: 0-311V DC Output current: 10A size:50 * 76 mm Material:Plastic + metal colour:black Package Contents: 1 * rectifier board Only the above package content, other products are not included. Note: Light 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.