Enjoy the ADJ black light that has reflectors for extreme high output and measures at 48 inches. With it already being assembled with the tube and fixture its easy ready to be installed. Set the right mood with this light and never look back. This 40W bulb and fixture were made to last you through many shows. With an on/off switch you can control when this light needs to be used. This awesome black light is one of the best of its kind, producing immense light for its price. The value of this bulb is unmatched and you will be feeling the value once it’s hooked up.