if it is a warm or humid day, or you're in a hurry, they may need to be refrigerated to harden. way to know at which future or past version the code will break. and at the same time i’m absolutely terrified that no one will read it, it won’t be on any shelves in any shops, and it could be the end of a whole new career for me. unlike in other solar panels, these cells do not require direct sunlight for them to work since they can still generate electricity even when there are clouds. 