lumens (brightness): High -- 4000LM Low -- 2000LM Specially made for motorcycles -- to fit within fairings and to withstand rain Uses specially made high quality COB light source LED, for instant brightness. Contains a fan with high rotational speed, high power, low noise with 6500 revolutions per minute. Excellent heat ventilation with great service life. Contains H4 connector plug for easy installation 200% brighter than your stock halogen headlight(s) Instant full brightness without start up delay Installation instructions are not included in the package (because it is not necessary). Professional installation is highly recommended, although not necessary. If you do have questions about installation, we have videos that will explain how to do it. These videos are available upon request.
