This Small and lightweight UBEC features a High efficiency switch mode design providing better heat dissipation when compared to linear voltage regulators. The shielded PCB design and output EMF coil makes helps provide a stable and low noise voltage output. This UBEC also features built-in reverse polarity protection.Specs:Input: 6V-23V (2-5S Lipoly, 2-6S Li-Fe or 5-15S NiXX Battery Pack) Output: 5V/5A (Less than 50mV peak to peak voltage @ 2A)Dimension: 44.6mm x 14.3mm x 20.4mm(LxWxH)Weight: 11g (wires included)