What To Look For When Choosing A Mountain Bike Light


Bike lights are needed to light the way especially while riding at night. There are a lot of deals on the web, and sometimes it’s hard to understand what light to get for biking. To help our audience we had a group of testers evaluate a variety of mountain bike lights under different circumstances. In practice, we learned of the most important factors. For example, cyclists must take into account the dimensions of the lens used to understand how the light beam is dispersed. When it comes to biking in the dark, these parameters are very important. Also, the journey can quickly get out of hand if the flashlight doesn’t have enough energy.

How bright is the bike light supposed to be?

What is the most efficient bike flashlight? High energy is very useful, but it may not be compatible with your bike. For example, if you usually ride slowly on a smooth path, you don’t need high-energy lamps, but a high-powered flashlight can be essential on tougher terrain.

You also need to know if the battery life is good enough for a specific model. Especially since their signaling appears to worsen over time. You may own a bulb with a capacity of 1,500 watts with a battery that prevents it from being fully used throughout the trip. Although a light with a capacity of 100 watts is cheaper, with a larger battery, this is going to be a much more useful purchase.

You can easily discover this for yourself in a scenario where the more powerful flashlight does not meet your specific requirements. For example, when the climate is moist and foggy, the light that is too bright will only impair your vision. This is due to a good portion of the light that is reflected by the rider. It’s also not very comfortable when you’re followed by a cyclist who has a very strong flashlight. Your own shadow will start to interfere with your judgment when choosing the ideal route.

Take into account the suggestions made in this post. In reality, we’re almost certain that the median strength bike light will meet the needs of a larger number of riders. Summing up, we can conclude that you should choose a flashlight depending on your riding style and frequency, as well as on the cost obviously.

To measure the strength of the light flux, we’ll use a specially designed tool. Fixed at a distance of 5 meters from the light source, it will be most accurate in a space without reflective surfaces. 

Elements to notice when choosing mountain bike lights includes:

LED’S: in most modern lights, LEDs are used instead of conventional incandescent bulbs. They have significantly reduced power consumption and are less prone to take mechanical damage after falling. In reality, technology is progressing at such a high rate that almost every year companies surprise cyclists with the latest exciting new product. Because of this, it is sensible to start anticipating some of the most innovative new designs.

Optics: the reflector and the glasses decide mainly how the bike lights up your route. A lens with a wide-angle of reflectivity will help to illuminate all the hazards in your way-nothing will be able to overcome your peripheral vision. While narrow-angle lenses help light a long but tight section of the road.

Mounting: this depends on how you use the light. It’s worth getting the right item. Your bike light must include the specific types of fasteners you need (on the helmet and the steering wheel).

Buttons on the case: based on the supplier and the model, not only the on and off switch but the operating system buttons can be found on the cover of the flashlight (sometimes just one can be used for all tasks). It is essential to check the correct waterproofing of the keys (if you are planning to move in humid or windy conditions) and also to be positive that the pad is responsive to you while pressing the buttons on it (even with biker gloves on). You should not be prone to switching off the flashlight by inadvertently pressing one of them.

Charging: this issue is ignored by many bike light buyers when decision-making. Manufacturers offer a variety of alternatives for charging a bike light that can meet the needs of the most difficult rider: a mini laptop, a cigarette lighter or a router. Some chargers attach directly to the power outlet, allowing you to charge AA, AAA, and other batteries. Also, before purchasing, you should take full notice of the charging speed of the battery needed to fully charge the flashlight, so as not to get into a difficult situation on the road.

Wires: you can quickly purchase a monoblock lamp (with a battery enclosure right in the flashlight enclosure), but the strongest designs, as a requirement, have an internal battery that is attached directly to a bike headlight. It is usually installed on a steering wheel or a helmet (a battery itself on a rack or installed in a book bag or a pouch). When you purchase a flashlight, make sure that the connector connects to the battery and the headlight is safe and that the size of the cable that comes with the flashlight is sufficient for your travels.

Battery: Nowadays, the most commonly used flashlight designs come with lithium-ion batteries. Some companies still distribute the original nickel-metal hydride (NiMH) batteries in stores. Before you purchase, inspect the battery life of the flashlight as directed to meet your requirements and biking circumstances. If you’re on long night trips regularly, it’s best to buy a flashlight backup battery just in case you need to use it as an emergency replacement while riding.

Housing and Mounts

When purchasing a bike light, it is essential to ensure that it is conveniently and reliably mounted on the steering wheel, belt or rack (especially if the bike light has external batteries). Poor compatibility can add to a large number of issues on challenging paths, such as shaking. This could suddenly prevent lighting from staying positioned in the right direction. In this respect, larger lights are more convenient, as their mountings allow you to balance the light source in a comfortable position, even on thick steering wheel designs.


Energy should be the next variable to choose from. It should be noted, however, that light energy measurements in the watts indicated on the package by the manufacturer are distinguished in optimal laboratory circumstances. And actual measurements in the industry may vary 30-40 percent from those sometimes indicated. Therefore, before buying it, it is best to check the function of the bike light in different manners while still in the shop.

The Form and Extent of the Reflectivity of The Light Flux

First of all, you need to grasp for yourself which flashlight will work for you: one that will provide a brightly-focused light stream, one that will illuminate a vast area of the path you’re on or a choice for a short-range? Some are likely to be more expensive than others. If you often travel on challenging paths and surfaces, then instead of getting a costly and powerful flashlight, you might prefer a mixture of 2 less powerful and cheaper flashlights placed on the bike steering wheel and the helmet.

The simplicity of the working controls

Are you ready to set up a control panel for the flashlight or a fine-tuning mechanism for the useable light parameters? If so, companies are now prepared to offer a wide range of alternatives.


A system that tolerates high and moderate heat, moisture, dust, dirt, and recurrent hydraulic stress is not easy to develop. However, the inability of a bike light on a rough part of the route or a decline can often be harmful, so safety is a key factor in the choice. We are eager to help you in this department: almost all the lights are very secure at the moment. However, we suggest that you accept deals only in reliable stores and, if feasible, give priority to products of well-known brands, as any potential issue with them will be easier to resolve under warranty.

Battery Life 

The battery should be such that the beam brightens your route with confidence throughout the whole journey. The more epic journeys you make, the more powerful the battery should be. It is important to note that battery life is steadily declining over time under the impact of temperature and high altitudes. It is, therefore, best to use flashlights with the most powerful battery for winter travel. If you routinely ride your bicycle at night, there is a good reason to try a light model with a battery life indicator. And it’s worth looking for versions with a charging scale, instead of those without one. When the battery dies, the indicator starts to flash red, because this usually happens at the most inappropriate time, you might want to avoid being ill-prepared.

Do you need remote battery flashlights or monoblocks?

Traditionally, manufacturers of stronger flashlights provided cyclist designs with internal batteries. They also enhanced the use of the light itself and made it possible to use stronger energy supplies attached to the frame. However, strong designs with built-in batteries (monoblocks) have recently emerged on the scene. They are easily enough mounted on the handles, but due to their weight, they are not at all suitable for wearing a helmet.

Conclusion for choosing Mountain Bike Lights

Lamp shelter and bike lights in general: think about the quality of the lamp compartment/shelf design, including the precision and tightness of the seams. If you choose a strong flashlight, be sure that there are enough ribs to prevent overheating. We suggest that you use a mixture of the helmet-mounted bike light and the one that’s the handle bar attached light. With frequent biking in the dark, this mixture is the safest and most efficient.