What are the benefits of purple light fishing?

The advantage of blue light is the short wavelength, which can effectively reflect the fluorescent powder at the tail of the fish float, so that you can observe the fish float with a very small light bulb, and the fish will not be scared if the light is dark. Of course, white light can also be used, but if you want to have a good drift effect, you need much more bulb power than blue light. There is also a kind of violet light with shorter wavelength, which is better than blue light, but it is rarely used now because it is harmful to human body.