It seems like a lot of light is absorbed by common diffusers, and they add time and money to a project. I know many experimenters do testing without diffusion when they are using low-power LED's. Anybody know what distance is definitely safe and what distance is definitely not safe? I would think that 10 feet away would be very safe, but having them.... say....right next to your eye would probably not be safe. Maybe somebody here would be able to fine tune that range a bit more... This is for wide-angle 5050 SMD RGB's running at standard 20mA per channel.