1. Working power supply: Internal frosted milk shell bulb with AC220V ± 10%, 50Hz and a temperature of 2750 ± 50k.

2. Colorimetric tube: a transparent flat bottomed glass tube with an inner diameter of 30~33.5mm and a height of 115~125mm.

3. Standard color palette: 26 light holes, with glass plates of standard colors ranging from 1-25, and the 26th hole being blank.

1. The observation eyepiece consists of concave and convex mirrors, which can simultaneously see the color of the sample and the standard color.

2. Optical eyepieces have the ability to adjust light and focus, making them easy to use.

3. The box is made of high-quality steel plate, with a strong surface electrostatic spray paint film and a beautiful appearance.