This is a Unity 6" Halogen Spotlight p/n 210000-0002 in a black housing.
The 325 series post-mount spotlights feature a 6" halogen lamp which utilizes an hermetically sealed beam lamp rated at 160,000 candlepower, 12 volts, 50 watts and 100 hours lamp life. The lamp has a glass lens and reflector. The new designer-styled 325 series feature a head assembly made of high impact ABS with heavy-duty chrome finish. They are designed to compliment both modern and classic vehicles, and provide long service life.
Note: Installation kits are sold separately. In order to determine which spotlight is right for your vehicle and which installation kit you'll need, please refer to the Application Guide below.