Product Specifications

The W5W 12V 5W halogen lamp with a base specification of W2.1×9.5D is a low-voltage medium-power dedicated halogen light source, and also a common model for vehicle-mounted and small-scale lighting scenarios. Among the specifications, W5W is the standardized model code of the lamp, directly corresponding to a rated power of 5 watts and a rated voltage of 12 volts; W2.1×9.5D refers to the specification of its dedicated pin-type base, where "W2.1" indicates that the width of the base pins is 2.1 millimeters, and "9.5D" indicates that the depth (pin length) of the base is 9.5 millimeters. This base is a universal snap-in pin structure, suitable for most standardized slot-type lamp holders. It can be connected by direct plugging and unplugging without welding, featuring strong compatibility and convenient replacement.

Relying on halogen cycle technology, this lamp can effectively slow down the evaporation loss of the tungsten filament. Compared with ordinary incandescent lamps of the same power, it has higher luminous efficiency, stable color temperature (warm white light ranging from 2700K to 3200K) and a color rendering index of ≥95, which can truly restore the color of objects. With a 5W power output, its brightness is significantly higher than that of the previous 1.2W and 3W models, which can meet the needs of a wider range of local lighting; the 12V low-voltage power supply ensures the safety of use, especially suitable for enclosed or human-accessible scenarios. During use, it needs to be matched with a 12V DC or regulated AC power supply to avoid overvoltage operation; during installation and replacement, it is strictly forbidden to directly touch the glass tube with hands to prevent local overheating caused by residual fingerprint grease and shorten the service life of the lamp. It is widely used in scenarios such as car position lights, license plate lights, interior lighting, as well as local lighting of small display cabinets and precision instruments.