When shopping for rear lights, the most important thing to consider is how and where you ride. If you're commuting through well-lit streets, a compact and affordable rear light will do the job well, giving drivers and pedestrians a clear signal of your presence. If you ride in darker conditions, on busier roads, or for longer stretches, look for a light with a stronger output and multiple flash modes to maximise your visibility from behind. Power source is also worth thinking about. Battery-powered options are a great entry point, while USB rechargeable rear lights tend to be lighter, more convenient, and more cost-effective over time. Side visibility is another consideration for road commuters, as being seen from angles matters just as much as being seen straight on. 99 Bikes stocks rear lights from trusted brands to suit every riding style and budget.