Even if you rarely ride in the dark, a set of decent bike lights is a must for all cyclists. In this guide, we'll help you choose from some of the best front and rear bike lights, and offer some handy tips to help you choose the right type and price point for your needs.
Best front bike light under £50: Ravemen CR450 USB Rechargeable front light
Best front light with a camera: Cycliq Fly12 Sport
Best value rear bike light : Moon Cerberus rear light
Best super bright rear bike light: Lezyne Strip Drive 300+ LED Rear Light
Best helmet-mounted light for extra visibility: Exposure Link+ Mk3 Front and Rear Combo with DayBright
Best light set with smart connected features: Lezyne Connect Smart 1000XL/KTV Pro Smart Lights
If you're returning to cycling after a very long hiatus, you'll be pleased to know that bike lights have come a long way this century! The rechargeable, LED light is now king, and unlike the notorious Ever Ready lights that were popular in the '70s and '80s, you don't need to spend a fortune on batteries to get your feeble beam to work for a couple of hours.
Nowadays, you can pick up front lights that can illuminate an unlit path like it's daytime, rear lights with various different settings that can be as bright as car tail lights, and they're all relatively inexpensive. There's also dynamo lighting, that converts the energy from your wheel into charge for your lights so you never need to recharge them, and even lights that double up as action cameras.
Though most modern bike lights are very versatile, there are a couple of things to think about when purchasing a set of bike lights to make sure they're suitable and compatible with your bike.
Mounting options
First, you might want to check how they mount: does your bike have a non-standard seatpost that is aero-shaped, or anything other than round? Go for a rear light with a flexible mounting system, as a hard plastic, round mount won't fit. The same goes for the front, as if your handlebars are integrated and flat in the middle, it could be difficult to mount most front bike lights.
Brightness
You should also consider what environments you will be riding in and how much power you'll need (more on that in a minute). If you only ride on roads and never really stray onto unlit paths, you won't need to splash out on any front lights that are suitable for trail use. The sheer number of lumens isn't everything, as beam shapes have a big influence on how dazzling lights can be, but you're unlikely to need a front light with more than 800 lumens as the max setting if you only ride in town; even then, the highest setting will rarely need to be deployed.
Modes and features
Consider what settings you will need. Most modern bike lights come with a number of steady, flashing and pulse modes, so go for some that have options if you're not sure what is best. A popular combination is a steady front light with a rear light on flash mode in urban environments; although, use your judgement to decide on how bright your rear light needs to be if you're running it on flash. Dazzling drivers and other cyclists doesn't really improve anyone's safety, so get a second opinion from friends or relatives if you're in doubt about how bright your beams are to others.
Make sure the lights you choose are intuitive and easy to use, particularly if you anticipate you might need to switch settings on your front light quite often. If you ride year-round you'll want the buttons to be easy to use even wearing thick gloves, and lights that allow you to toggle between high and low modes easily are a good option if you want to pass other cyclists politely without dazzling them.
Battery life
Any light worth buying nowadays is rechargeable via USB (we only recommend rechargeable lights in this guide other than our dynamo option) so run time is less important for most cyclists nowadays; but of course, if you plan on doing multi-day adventures without access to electricity very often, you'll want lights with decent battery life unless you go down the dynamo route.
Bear in mind these are our top picks, front and rear, from a rather large archive of bike lights we've reviewed and beam tested over the years; so if you want to refine your search you can always check out our more detailed guides to the best front bike lights and best rear bike lights, as well as our reviews section on front lights and rear lights.
Explore our handpicked selection of the best bike lights available right now below, along with a helpful Q&A section to answer some of your bike light questions. Want to know more about how we review products and put our buyer’s guides together? Check out this article for a full explanation, so you can feel confident in our recommendations - especially when it comes to your safety out on the road.
To further help you inform your choice when deciding on a front light, we'd also recommend checking out the very handy road.cc Beam Comparison Engine which allows you to see still images of the beam shapes as they would look when mounted to your bike.
Right then, let there be light(s)!