Difference between picosecond Red light & Blue light：

Both of them for removing Tattoo, Mole, Speckle ect, mainly apply for melanin.

The power and effect of blue light picosecond pen is more stronger. It need more professional operation. Suitable for beauty salon use, you can't do it yourself, you need to wear goggles.

The blue laser pen have 9 levels Frequency mode, different output frequency and wavelength. The flash area is bigger.

The red laser pen have 3 Frequency mode, its flash area is smaller. It suitable for subtle operation. It is suitable for personal home use and can be operated by yourself.

The blue light's wavelength is 450nm. And the red light's wavelength is 850nm.

9 level is lowest frequency for Blue laser pen. 3 level is lowest frequency for Red lase pen.

Please start from the lowest frequency, then slowly adjust to the suitable level.