Having lights on your bike isn't just about you being able to see where you are going. It's about other people being able to see you coming, too.
Like cars that run Daytime Running Lights to help with road presence and be seen, bike lights also deploy a similar technique. Front bike lights often come with different mode settings to help you be as visible as possible, as do rear lights.
But front lights shouldn't limit you to daytime riding only - the best bike lights will keep you riding well into the night with a bright beam. This will help you not only see where you're going but it will also help you see potholes and drains and other such dangers on the road.
What to look for in a front bike light?
This depends on the riding you do; if you do more commuting in the summer, you might want a front light which has a nice bright flash that can be seen by pedestrians and drivers alike. This would alert people to your presence and help you to be seen.
If your riding is predominantly at night or early morning in poor lighting conditions, having something bright will help you see where you're going and what's around you.
What is a lumen?
A lumen is a quantitive measure of light or brightness. The higher the lumens number, the brighter the light.
To put it into measurements of your home, a 40 Watt bulb is around 450 lumens, a 60 Watt bulb is about 800 lumens and a 75 Watt bulb is about 1,100 lumens.
The best front bike lights
Let's poke about into the well-populated world of bike lights and pick out a few that caught our eye.
www.wiggle.co.uk
This small, durable, and sleek little light won’t be the one which lights the whole road on your evening rides, as it can only put out 50-lumens at full power. However, it’ll be enough for daylight and low light conditions to help you be seen.
Rechargeable via USB, the Lithium ION battery can run for 25 hours when used in its lowest setting, blinking at 14 Lumens. When used at its max setting of 50 Lumens on a steady light, it’ll run for 1.5 hours.
Pros
- Easy to mount to your bike
- Compact enough to fit into your pocket
- USB rechargeable
Cons
- Not overly bright
- Will need recharging daily if used on full power
Lumens: | 50 max |
Battery life: | 25 hours max 1.5 min |
Charge time: | Two hours from flat |
Charge method: | USB |
www.wiggle.co.uk
This small, easy-to-fit front light will help you be seen more, rather than guide you through the dark country lanes on a commute home. At only 15 lumens, it’s not exactly what you might call bright, but it is enough to get noticed.
It has five different light modes (three different kinds of flash, pulsing and solid). The light casing has an IPX7 water resistance rating, is incredibly lightweight at only 22 grams, and the wide optic lens provides more than 180 degrees of visibility.
Pros
- Easy to fit
- Compact design
Cons
- Not that bright
Lumens: | 15 max |
Battery life: | 22 hours max (variable on how it’s used) |
Charge time: | 2.5 hours from flat |
Charge method: | USB |
What Kong has done here is make something that sits between a light which will get you seen and help you see in equal measure.
It's the ideal light for those dusky summer evening commutes home. It's very impressive to get 350 lumens in such a small and reasonably priced light, and it'll be enough to help you spot potholes and drains.
Pros
- Easily attached
- Lightweight (85g)
Cons
- Consider durability at this price
Lumens: | 350 max |
Battery life: | 180 hours on eco mode, 1.5 hours on max setting |
Charge time: | Five hours from flat |
Charge method: | USB |
www.condorcycles.com
A light for city commuters who want to be seen, the Beryl Laserlight Core is a durable and compact light with waterproof construction and low weight.
At 400 lumens, the light also benefits from laser projection technology, which helps to improve your visibility at junctions and helps to keep you seen if you're in a blind spot. There are four different modes which give you a range of flashing and steady light options. The Day Flash cuts through distractions on busy roads and is superb in the daytime.
Pros
- Bright light
- Fully waterproof
- Easy to mount
Cons
- Could be brighter at this price point
Lumens: | 400 max |
Battery life: | 4.5 – 41 hours |
Charge time: | 50% in one hour, 100% in 4.5 hours |
Charge method: | Micro USB |
www.wiggle.co.uk
The Trace Mk2 is a front bike light designed to help you be seen during the day. It’s small, compact, and has three different brightness levels with a maximum output of 125 Lumens.
In a neat little feature, this light has a traffic light system for letting you know how much battery life is left, so you don’t get caught out on your rides. It’s small and lightweight, making it perfect for commuting or those summer evening time trials.
Pros
- Lightweight
- Compact
- Decent battery time
Cons
- We would prefer more lumens at this price
Lumens: | 125 max |
Battery life: | Min 3 hrs Max 24 hrs pulsing |
Charge time: | Not given |
Charge method: | Micro USB |
This from Bontrager is yet another perfect daytime light at 200 Lumens via a high-powered CREE LED light. It’ll attach to your handlebars, bike or helmet using the supplied bracket.
Bontrager states that this light can be visible up to 2km away - quite the claim from a bit of light. There is an integrated light sensor that auto-adjusts your light's brightness, so you don’t have to worry about being in the correct setting to round it off. You can connect it to your Garmin and Bontrager ANT+ devices for always-on battery status and wireless control.
Pros
- Good level of tech crammed in.
- Bright light for daytime running.
- Wireless control is perfect if it’s attached to your helmet
Cons
- USB-C charging would make this perfect
Lumens: | 200 max |
Battery life: | 12 hours of runtime with the all-day flash mode and 1.5 hours at 200 lumen |
Charge time: | Not given |
Charge method: | Micro USB |
CatEye is a very well-respected bike light brand that brings you this, the 1,100 lumens (the clue is in the name) front light, which uses LEDs to make the most of your road presence.
With a double button tap, you can quickly adjust the lights to give you the brightest mode possible. Pressing the button again will bring the light back to its previous mode. The same power button gives you a runtime indicator using a colour-coded system. Blue means more than 50% battery, yellow is between 50-30% battery and red is less than 30%.
Pros
- Tough scratch-resistant lens
- Incredibly bright light
- Quick release bracket
Cons
- Full 1,100 lumens will only last 1.5hours
Lumens: | 1,100 lumens maximum – 200 lumens minimum |
Battery life: | 1100 Lm, 1.5hrs / 800 Lm, 2hrs / 400 Lm, 4.5hrs / 400 + 1100 Lm, 6.5hrs / 200 Lm, 50h |
Charge time: | Three to five hours |
Charge method: | Micro USB |
www.trekbikes.com
It's expensive, but on a winter commute or an evening bike ride, the super bright ION Pro by Bontrager will make it so you can see where you're going.
The adjustable mount fixture means that the light fits a wide variety of handlebars - spanning everything from 25.4mm to 35mm. Boasting a huge 1,300 lumens, this powerful bike light will light up the road, path or trail ahead of you. A variety of flash settings means you can also use this light in the daytime and be confident of being seen.
Pros
- Super bright light
- Connect with Garmin® and Bontrager ANT+ devices for always-on, battery status and control
- Blendr-compatible with a helmet mount available
Cons
- High cost
Lumens: | 1,300 max |
Battery life: | Maximum of 26 hours, minimum of 1.5 hours |
Charge time: | Not given |
Charge method: | Micro USB |
Fancy yourself a bike light that connects to your Garmin Edge cycling computer (read our full review) and works so that it can pick up on ambient light and speed, and looking to get the best out of its battery? The Garmin Varia UT800 is an intelligent bike light which will also bring 800 lumens of light to the roads beyond the city.
The UT800 is designed to sit under your Garmin mount with its GoPro attachment system, sitting on your handlebars and not getting in the way of your cycling computer, optimising its positioning to give you the best lighting possible. For all this packed in, it's still light at 130 grams and with five different lighting modes, it'll be sure to get you seen and help you home.
Pros
- Adaptable to different lighting
- Lightweight
- Intuitive and easy to use
Cons
- A high price to pay but a quality light
Lumens: | 800 max |
Battery life: | 1.5 hours, high; 3.0 hours, medium; 6.0 hours, low; 25.0 hours, day flash; 6.0 hours, night flash |
Charge time: | Not given |
Charge method: | USB-C |
www.condorcycles.com
You might be sitting there thinking, what can a light worth £220 bring me that others cannot? A super light (120 grams) super bright (1,900 lumens) front bike light can run for 18 hours. Made specifically for your bike helmet, this light is designed for mountain bikers who need the brightest lights to light up the trail ahead.
Pros
- Super bright light at 1,900 lumens
- Lightweight
- Very easy and quick to change lighting modes
Cons
- One-hour runtime at maximum lumens
Lumens: | 1,900 max |
Battery life: | One – 18 hours |
Charge time: | Four hours |
Charge method: | Micro USB |
Frequently Asked Questions
How bright does my front light need to be? There isn't a legal requirement to say you need your front lights to have a minimum amount of lumens. Our advice is always to buy what you can afford and how you will ride. Lights do not guarantee that everyone on the road will see you but generally speaking, the brighter the light can flash, the more chance you have of being seen.
Are bike lights a legal requirement? No, you do not have to have lights on your bike to ride in the dark; however, it is heavily recommended to see the road conditions, and people need to see you.
Do I need bike lights for commuting? Bike lights will help you be visible when commuting. Having a light to help you see is also important if you commute when it's dark. This will generally be a mode setting which is a steady light but also has a pulse to allow you to be seen.