? Super Bright - 4FT led shop lights feature 4400 lumens brightness at 5000K Daylight White by using only 42W, equivalent to 2 lamp fluorescent fixture, provides a 70% reduction in energy usage ? Reliability: ETL certified, this long-lasting LED shop light provides up to 50,000 hours of light before any maintenance is required ? Linkable - 4ft linkable shop light use plug connection to connect up to 4 pcs together in your garages, workshops, workbench areas, storage areas, warehouses, basements, equipment rooms, etc ? Easy Installation - Plug Play. Come with 59" power cord and other small accessories. You can hanging it with the included hanging chains or flush mounted with the included mounting screws ? Safety and Service: Hykolity customer service is always here to solve the installation problem for you