Order before 7pm/8pm, shipped same day! Free shipping and returns. Bulb included: Nee Specifications: Extra functions:Dimmable, dimmer not included Black rail of 1 meter for the professional 1-phase rail. The rail is supplied with connector (power supply) and end piece. It is a component for a 1-phase rail, which means that all spots on the rail are controlled together. Are you looking for lighting that you can hang on a rail? Then a 1-phase rail is the perfect solution. Often used in a professional environment such as the office or in the hospitality industry.