There is no definitive answer to this question. Both the sun and sunbeds emit UV radiation, which can be harmful to your health if you’re exposed to too much of it. So, it’s important to use sunbeds safely and in moderation just the same as you should only tan outdoors in moderation too. That being said, some people may argue that sunbeds are safer than sunbathing because you can control the amount of UV radiation you’re exposed to. When you’re sunbathing, you can’t always control how long you’re in the sun, so you might end up getting too much UV radiation.