SerfasVulcan 350 TAILLIGHT 350 LUMENS

Love this light. The highest lumen rear facing light I could find, cars dont like it which means I do. Viewable from some distance behind you (300-400 feet at least). Reliable battery which is always an issues with bike light. I have had the one light for 3-4 years and still working. USB-C type charger easy to use. 3 LED bulbs best on "flashing mode". I use in conjunction with my Garmin rear facing radar unit. Only wish they offered different latching mechanisms for different surfaces. It comes with a "rubber band" type that raps around the seat post. A little pricey.

This light is great. I used a mount to place it horizontally beneath the saddle since I have a dropper post. It's crazy bright, so don't look anywhere near it when you turn it on.

Not recommended. On/off switch unreliable. On two recent rides the light would not turn on again after our group took a coffee break. Sometimes it works ok, but other times it does not. Not happy with this purchase. I have stopped using it.Working on getting refunded.

This light is really bright and super noticeable. I really didn't think I would like anything besides my Bontrager light but man-O-man this light kills it. Downfall- it's not a smart light!

You can turn this on in the morning and leave it on all day. Very bright. Shows up nice in bright sunlight. I have tested it on very long rides. Highly recommended.

Strong light, good, solid construction... but I am disappointed that the USB-C port only accepts a cable with USB-A at the other end! (Tested many times)... killing one of the main benefits behind the USB-C standard of reducing cable complexity at home.Another minor complain is that the pace of blinking patterns is too slow at the strongest setting.Another issue is that you cannot tell what is level of the battery until you are at lowest capacity... and a hard-to-see blue light appears. I would have preferred a Red-Orange-Green signal on button tap.

I have used Serfas lights for many years. This light is easy to mount and bright for daytime riding. I only use it in daytime flash mode which is supposed to have a19 hour burn time. I have found this to be fairly accurate so far.However, the instructions state that a solid blue light will illuminate when the battery should be charged. If the blue begins flashing, the brightness diminishes and there are only 45 minutes remaining to the battery.My issue is that the solid blue light comes on after only 6.5 to 8 hours of burn time. I would expect this to happen much later ( maybe 15 hours or more) into the 19 hour estimate. I have returned the first light to my bike shop, thinking it might be defective, but the replacement is the same.Like I stated, the light continues to operate at the full daytime flash setting for the full estimated time, but I can’t rely on the blue light low battery indicator.Serfas has not responded to my calls and emails.

This light does NOT turn on!!!!! WTH!!!!