Home Solar Power Guide Is this true that solar panels need direct sunlight to work?

Is this true that solar panels need direct sunlight to work?

I recently bought myself a solar power lamp, but I have one question in mind before using it, that is will they work on daylight alone, the reason I am asking is that I live in the UK and sunlight is not premium, I would like to install a small panel in the garden to run the lights in my shed, any advice and feedback will be appreciated. Please help as soon as possible.