Short description:

Built-in heating element

When the strong element is wound, the current is not enough to damage the heating element, and the built-in heating element solves the problem of loose contact and burnout of the heating element.

Longer heating element life

Use a cotton swab to clean the photosensitive material to avoid dust covering and reducing the sensitivity.

spring

The internal spring of the heating element has good thermal conductivity and is not easy to damage the heating element