13 LED DESIGN: This pocket LED flashlight is specially designed for jewelry appraisal, super bright 3LED light source with white, yellow and violet light for different needs. 2EASY TO CONTROL: With 3 control buttons to control white, yellow and purple light respectively, the brightness of white and yellow light can be adjusted steplessly. 3LIGHT CONCENTRATOR: Comes with a professional concentrator, which makes the light more concentrated, strong penetrating power, and the jewelry internal structure is clearer. 4WITH SCALE: The side of the lamp body is marked with a 060mm long scale, which can be used to measure the size of jewelry at any time, which is accurate and reliable. 5METAL SHELL: The flashlight is made of stainless steel and aluminum alloy, with strong impact resistance, not easy to corrode and rust, water resistance and long service life.