From Busch & Mueller's distributor: "This light comes with either a silver anodized or black anodized finish. The Senso/Off pushbutton switch is located at the back of the IQ-X, and it is encompassed by a glowing blue ring. The IQ-X utilizes a standlight and daytime running lights. There is automatic adjustment between daytime and night time modes. The IQ-X provides the ideal headlight beam: it is straight ahead in daylight so that oncoming car drivers are alerted to your presence, changing over at dusk to a beam optimized for illuminating the road surface ahead, but still providing high visibility to oncoming drivers.The IQ-X ships with its own highly adjustable mount, and is compatible with other Busch & Müller headlight mounts. For most applications the included mount will work."