Tips:The same appearance of this pen, there are three light sources for the choice of Oh, respectively, red light, green light instructions, blue and purple light instructions show a single indication function.

The brightness of the light: Green >Red light >Purple light (The dark green and red light can see the beam. Blue-violet light can not see,Purple light is relatively light, relatively large spot, pro mind carefully shot, but you can test money)

Light stability: Green <Red light = Blue violet light (Green light affected by the climate, the use of colder conditions, the need for preheating)

note; This is the price of the naked pen

Light, there is such a magic, so that humans insist on hardship

Relentlessly pursuing the long road in its pursuit of the emergence of light for us to light up

The road ahead farewell darkness, so that the night becomes more comfortable, beautiful and safe,

In the world of light and light, through their continuous improvement,

Lights become the perfect combination of science and art,

Lighting from the fire, oil to electricity development process.