I am afraid not. That won't be possible.
Yes, this is a modular kit, so another panel can be added.
No, sorry! We would not recommend this.
Yes, 2 switches would work
No, Sorry this would not be suitable.
We wouldn't recommend it as these kit are designed for lighting however, it would work but could limit the life of the battery if you drain it too much and too often. If you only needed to charge once every 4-7days in summer months it may work.
These kits are designed for lights but you could run a heat lamp too. You really need to look into the power usage of a heat lamp as it likely to be to high for this if used regularly.
Hi Phil,
10meters is the standard we supply, but feel free to contact us here: https://www.thesolarcentre.co.uk/pages/contact_us.html and we'd be able to add more for a small cost. The length of the wire does reduce performance so it's best to keep the length as short as you can however the difference between 10m and 15m likely to be very limited.
The GEO kit is design for the panel to be outside and the lights inside.