Solar

Which module for which purpose?

Framed modules can be screwed in place and are suitable for permanent installation, e.g., on a mounting bracket or on the roof using mounting rails. Solara even offers a walkable version. These modules are weatherproof and waterproof.
Flexible modules are suitable for covering any surface, such as any surface on yachts or camper van roofs. These modules are glued in place and are usually walkable. The yield is slightly lower than with framed modules, but flexible modules are bendable and can therefore be mounted flush with the surface. Naturally, these modules are also waterproof and weatherproof.
The portable version can be taken anywhere, is usually foldable, and has the advantage of always being positioned to face the sun. A charging adapter is available that feeds the solar power either into the cigarette lighter socket or into the diagnostic port of the car. Flexible modules are suitable for charging.

Which quality level is advisable?

The main difference between budget models, such as those from DCsolar, and high-quality modules from Solara is the build quality and therefore the durability. Solara cells are interconnected in such a way that expansion due to heat or cooling cannot interrupt the current flow. Furthermore, Solara uses more bridge diodes, so that a small amount of shading doesn't immediately affect the entire module. Budget modules usually have slightly thinner glass, which makes them susceptible to hail and limits their suitability for walking on. Perhaps a little support for local companies is in order. Solara modules are produced in Germany, while DCsolar modules are made in China. When deciding between one manufacturer and the other, price is certainly important, but so is the intended use. Anyone wanting to equip a boat for worldwide voyages should opt for Solara, while a DCsolar module might be perfectly adequate for an afternoon of camping by the lake.