The first florescent lights were made for a customer that could not find any for a project she was working on. These are made with four (4) LED pure white chips mounted to the ends of two clear acrylic rods. They look quite authentic and use only 7 ma. of current and put off virtually no heat. They will work on either 9 volts or 12 volts DC only. They are made of an ABS white plastic and I have a white chain attached to two eye hooks just like the real thing. Because they use LEDs, they will work best with a 12-volt, Voltage regulated, DC power supply. Light measures 3.5” x 7/8” x 5/8”.