EXTENDED LENGTH: A screw-in extension head is a device that extends the head so that it can more easily reach higher lampholders or fixtures, thereby expanding the range of illumination. FLEXIBILITY: Screw-in extension heads usually have adjustable lengths and can be telescoped to fit lamp bases or fixtures of different heights, providing greater flexibility and convenience. Safe to use: screw-in extension light head is usually made of high quality materials, such as steel or aluminum alloy, with better durability and stability, can safely and reliably connect the light head and lamp base, to avoid the safety hazards caused by unstable connection. Convenient to install: screw-in extension light head usually has a standard light head interface, which can be connected with common light bulbs or lamps, without additional tools or complicated installation steps, easy to install and replace. Multi-purpose: The screw-in extension head is suitable for various lamp bases or lamps, such as chandeliers, wall lamps, table lamps, etc., which can provide more flexible and diversified solutions for home or office. List: 2x screw-in extension light head