Dock lights, as the name implies, are used to illuminate docks during the loading and unloading process. These are especially made for this purpose that is why it has distinctly designed light head and long swivel arms.
Dock lights are made with durable metal frames so it can withstand the wear and tear, bump and hit from the normal shipment course. Dock lights are available in bright yellow shade for maximum visibility especially during the nights. It usually has wire protection guard so that the bulb is protected and that the possibility of the bulb being shattered is lower. These lights are generally mounted on dock walls or doors however there are also portable dock lights that are not fixed on walls and can be carried around from dock to dock.
Two of the most favored brands of dock lights are TPI and WESCO. TPI offers regular and portable dock lights, as well as unique dock light with fan attachments. WESCO on the other hand offers a distinct dock light that you can adjust 300° horizontally and uses only incandescent lamp.