Using these floating candles is a breeze. Just place them in a glass bowl or other suitable container filled with water. They'll create a beautiful, relaxing atmosphere. When it comes to burn time, expect around 1 - 2 hours, but remember it can change depending on where you are and the weather. As for maintenance, keep them in a cool place. Avoid leaving them in extreme heat, like in a hot car or direct sunlight. If you're shipping them to a hot state, be aware that the candles might be affected. So, make sure to handle them with care and enjoy their warm glow.