voltage regulator

[fungus]

CrossRoads:
I can't open e-bay from here, so I have no comment on the item fungus showed.

It says "5A DC-DC Adjustable Buck Step Down Module..."

Here's the picture:

http://hk3.image4.pushauction.com/direct/df/dff7a368-2d54-402c-9f41-d22dc193feac/cd/cd6e7ba9-f3b2-2cf2-7bd4-15f9d2885ed3.jpg