All 9 products from ZHEJIANG CHANGHONG LIGHTING SOURCES CO., LTD..

These are cylindrical electronic instrument components with a dark finish and metallic end caps. The components appear to be precision-engineered parts suitable for electronic assemblies or measurement devices.

Vacuum tubes are electronic components used to control electric current in electronic devices. They can be used for amplification, rectification, switching, or other functions.

This linear fluorescent lamp is designed for general lighting. It consists of a glass tube filled with a low-pressure mercury vapor that emits ultraviolet light when electricity is passed through it, which then strikes a phosphor coating on the inside of the tube, causing it to fluoresce and emit visible light.

This circular fluorescent light bulb features a double-helix design for enhanced illumination. The energy-efficient lighting solution provides bright, uniform light distribution and is suitable for various indoor applications.

This circular tool features a ring-shaped design with an adjustable central hub. It is used for precise adjustments and control in specialized applications.

This circular tool is made of white plastic or resin and includes a central handle. A metallic button or component is located at the center of the handle.

Compact circular fluorescent light bulbs feature an integrated mounting bracket and standard Edison screw base. These bulbs are designed for general illumination purposes, offering energy efficiency and a long lifespan.

This circular fluorescent tube lamp is designed for uniform lighting. It is typically used in ceiling fixtures or specialized lighting applications where diffuse, even light distribution is required.

This circular fluorescent lamp fixture is designed for lighting purposes in various settings. It features a round fluorescent tube, a white plastic housing, and a central brass-colored connector.