Mini Step Down Voltage Regulator how to solder connections

[Ground Engineer]

Bought this voltage regulator from ebay but not sure why it has 2 inputs and 2 outputs for the + and -

I would appreciate some advice on the best way to solder the connections to this please.

http://www.ebay.co.uk/itm/321491630955?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

[powerlord]

You can check continuity or just look closely at trackd,  but I imagine it';s just for convenience.  Ie.  Could have 2 things connected to it. 

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[DebianDave]

I have a couple of these (except I didn';t pay £5 each for them!). Having extra solder points is useful to run a fly cable off on either side instead of slicing wires or trying to solder 2 wires to one ring. For example, I have mine set to 5v for powering a Mobius. The 12v side comes from my PDB and from the regulator I run a second cable to my 12v VTX. The solder points are linked so you can use either of the inputs/outputs

[Ground Engineer]

Ok thanks lads.