WG9925810001 WG9925810002 Rear Tail Light Left Right For Sinotruk HOWO A7 T7H T5G TX SITRAK C7H HOHAN Truck Spare Parts

Light Source and Brightness Performance
Existing information is contradictory: a Russian-language parts website lists this part number as corresponding to halogen/LED light sources (bulb specification P21W/LED), while some professional parts pages emphasize that it uses high-brightness SMD LED light sources, offering advantages such as low power consumption and fast response speed (LED illumination at approximately 0.1 ms, far faster than halogen bulbs), with stronger penetration in rain and fog. Another generic product description states that LED service life can exceed 50,000 hours.

Protection and Durability
The lamp housing material is mostly listed as engineering plastic/polycarbonate (PC), offering UV resistance and corrosion resistance. A professional parts page gives a protection rating of IP67 (completely dust-tight, capable of short-term immersion), an operating temperature range of -40°C to +85°C, and having passed vibration testing to adapt to the harsh operating conditions of heavy trucks. However, these detailed parameters come from a commercial website and are of limited authority.

Electrical and Installation
The rated voltage is 24V DC (heavy truck standard), using a waterproof plug-in connector for easy replacement without the need for a professional electrician. The left and right sides are clearly distinguished by part number (WG9925810001 left / WG9925810002 right). Some sources list individual weights ranging from approximately 0.28 kg to 1.26 kg, a considerable difference that may involve the distinction between complete assemblies and housing components.