Solar panel regulator

Yuor 12 volt battery will adequately act as the regulator.
The only concern would be of over charging the battery by leavig the panel attached to the battery for ay and not drawing off any charge.

I have 2 panels you mention connected directly to my aux battery that powers my 39 litre engels. I've used it for 4 -5 days in one spot with no problems.

The regulator only comes into play once your batteries near full charge. If there is a chance that your batteries may ever become fully charged from your panels then you need a regulator. If on the other hand you are drawing more out of your battery than the panel will put in (ie you only use the panel to delay your battery going flat), then you can most likely just hook the panel directly to the battery as described above.

derek i have similar panels
an auto electrician told me the following:
to get amp charge from panels divide watts by 12 (ie 12volt battery) 37watts = 3amp charge. if battery is 50 amp hours, 50 divided by 3 is 16-17 hours running or to charge at 3 amps.
he also said i do not need a regulator but simply put an inline diode in the positive wire to stop the charge going back to the panel once the battery is fully charged.
i had difficulty understanding all the techinal stuff about panels and wanted some simple explanation so i hope this is helpful
Ray

If the only load your battery will supply is 2 fluoros, then you will definately risk overcharging it without a regulator.

You can get away without a regulator only when you draw more out than the panel can put it.

Make sure you get a regulartor that can handle 3 amps or more. The top of the range for your requirements would be the Plasmatronics (an Australian Company) PR1210 for around $76.

I have just put a Plasmatronics PR1210 in my solar panels.
It fits perfectly in the connection box onback of panel. I also mounted a low voltage socket on this box. This means i run the lead from the car and just plug into panel.