The HALO dynamo is a powerful rack-mounted rear light with a unique, ultra-compact design featuring smooth organic lines and an integrated Z-reflector. It provides an incredibly effective light beam to the rear and sides. Thanks to its integrated Z-reflector and COB LED technology, the HALO delivers brighter, clearer, and more visible light than ever before. With a visibility distance of up to 500 meters from all sides and a powerful 8 Candela light beam, this rear light ensures that approaching traffic is kept at a safe distance. The round shape of the HALO GUARD XDS provides 360-degree visibility, making it the perfect rear light for any cyclist. The HALO-GUARD XDS features a standlight function, which offers additional safety by keeping the light on for an extra 4 minutes after you stop cycling. The HALO GUARD XDS complies with ECE regulations and German, Danish, Dutch, and French legislation. SB packed, for luggage rack, with standlight, with German approval mark dynamo operation COB technology with integrated reflector, with plug connections for power and ground cable, compact and modern design Functions standlight Main color red Area of use bicycle Light source LED Secondary color black StVZO (German approval mark) compliant yes Power supply dynamo-powered Type/kind Item Equipment reflector Version rear light