A. strong brightness, good lighting effect and strong light transmittance. The most important thing to appreciate jade is the texture and purity that can be seen. The more light is gathered, the better the identification effect of jadeite will be.

B. The flashlight is small and light, but it feels good.

C lamp holder is smooth and burr-free, exquisite in workmanship and won't scratch jade.

D. Yellow light and white light are commonly used, white light is used to shine jade, and yellow light is used to appreciate jewelry. Bai Guangyu can see that jade does not change color and the texture is clear. It is used to see carved jade without skin. Yellow light is more penetrating, so it is suitable for betting on jade and stones. Look at jade with skin, and put a flashlight on the skin of stones to check the permeability of stones.

E. use common driving power, such as 18650 and 16340 lithium batteries.