Chilly go on ebay and find the cheapest 20 watt panel you can afford,make sure it's a monocrystalline type,not amorphous or polycrystalline as they are not too efficient,the battery you get should be a leisure battery type as in caravans and any low wattage led or caravan type lighting and you should be right with that setup,any detailed info you require on this subject give me a pm and i will advise you,
Higgins
thanks higs will check that out now expect a pm lol
no probs pal,to give some idea of solar power,i had an watt panel and a couple of leisure batteries that gave me rough