What does full spectrum mean in LED grow lights? A full-spectrum PVISUNG LED grow light implies that your grow light closely resembles light from the sun. This marketing term comes from the concept of “full-spectrum light,” which in recent years has been used to refer to electromagnetic radiation from the UV to infrared wavebands. We had tremendous success with our 730W/1000W bar retractable LED grow light. Our this style LED grow light taught us growers how to use LED technology effectively. Our grow light is focused on efficiency ,performance and package in an effective factor for grower to achieve both high PPFD and good uniformity.