Probably eBay or Amazon is the easiest place to look for cheap gear. Hobbyist electronic stores might be a good source too depending on the country (here in Australia Jaycar has some fairly good value panels and PWM solar charge controllers).
Probably eBay or Amazon is the easiest place to look for cheap gear. Hobbyist electronic stores might be a good source too depending on the country (here in Australia Jaycar has some fairly good value panels and PWM solar charge controllers).