The size of the solar generator you need for a camping trip will depend on your specific power needs and the duration of your trip. Here are some things to consider when choosing a solar generator for a camping trip:

1. Power needs: The first thing to consider is how much power you need. Think about the types of devices you'll be using on your trip and how much power they require. You'll want to choose a generator that can meet your power needs.

2. Duration of trip: The duration of your trip is also an important factor to consider. If you're only going to be gone for a few days, you might be able to get by with a smaller generator. However, if you're going to be gone for a longer period of time, you'll likely need a larger generator to meet your power needs.

3. Size and weight: If you'll be taking the solar generator with you on the go, you'll want to consider the size and weight of the unit. Some generators are more portable than others, so be sure to consider this if you need something that is easy to transport.

4. Battery capacity: The battery capacity of a solar generator is an important factor to consider. You'll want to choose a generator with a battery capacity that is large enough to meet your needs, but not so large that it is unnecessarily heavy or expensive.

Ultimately, the best solar generator for a camping trip will depend on your specific power needs and the duration of your trip. It's a good idea to research and compare different models before making a decision.