Turnigy 5A SBEC is an advanced switching DC-DC regulator which will supply a constant 5A. It works with 2 - 10 cell Lipoly pack and supplies an interference-free constant 5 or 6v to your receiver.
Input protection: Reverse polarity protection
Output (Constant): 5v/5A or 6v/5A
Input: 8v-40v (2-10cell lipo)
Supplied with full instructions.