If you want to buy a lighting system for your bicycle you have to take into account the different possibilities and technologies available, bicycle lights are one of the most important components for the safety of both urban and road cyclist therefore we have to consider the use we are going to give, if it will be eventual situations of lack of visibility or everyday uses where we need a robust and durable lighting system.
In sporadic cases of lighting needs a bicycle light with battery operation can be an ideal solution, but if we do not want to worry about the battery life, and enjoy full autonomy, the bicycle lights powered by dynamo are a very practical and reliable solution
Dynamo hub shafts
Bicycle dynamos can be hub dynamos that are tremendously efficient especially in harsh weather environments. These hub systems include a magnetic mechanism in the front wheel axle that is continuously running even when the lights are off.
Their main drawback is their weight, also the cost of hub dynamos as it is not easy to find cheap hub dynamos, some offer an economical price with very interesting features like the Shimano Nexus 6v dynamo hub these hub dynamo systems offer a fairly light weight and improved rolling resistance, you can buy them cheap in many urban bike stores.
It is important to take into consideration that dynamo hub axles allow power supply to both front and rear lights and some models have external power supply in which we can charge through a USB port even a cell phone, which can be very practical in emergency situations for the cyclist who needs help, or consult a map.
The power supply systems for bicycle lights with bottle dynamo or traditional dynamo are very light and offer the advantage that when you do not need to provide power to the lights of the bike these remain disconnected without offering any resistance on the wheel, on the other hand usually convert less than 20% of the energy they consume with friction so they are not too efficient, it is also important to note that the operation of these bottle dynamos or classic dynamos is not very effective when the wheels are wet
There are some systems of dynamo of bottle that offer an excellent performance as for example the Dimotec of Busch & Muller this system offers a 40% of efficiency is what results double of the normal ones also the wheel of contact between the dynamo and the rim or tire is very improved with what allows a correct operation in different climatological conditions
Battery operated LED lights
As an alternative to the high cost and weight of dynamo hub axles and traditional bottle dynamo systems, LED lights powered by batteries have been gaining strength in the lighting market for cyclists in recent years, offering a wide range of products where we can find LED headlights with great lighting potential in very small formats, or elegant traditional style lights with a classic look ideal for the restoration of vintage bicycles.
The LED lights both front and rear have batteries included in the inside of them and it is important that they are well insulated so that they can withstand inclement weather and especially the rain, we must pay attention to aspects such as the materials on which they are made as steel or plastic and the type of batteries that carry the autonomy which publish indicating or not the state of the batteries and the amount of light they give off which is measured by Lux in lumens. If we want to buy a retro spotlight ideal for our classic bikes manufacturers like Spanninga or AXA have models of elegant classic design with very good lighting performance
Other important elements within the bicycle lighting are the reflective reflectors or two bicycle reflectors these were that we are seen more easily and its use is recommended on the wheels also many of the rear lights in Toledo Dynamo of any type always or usually include a part of reflector so that if we can be seen more easily some pedals well included with catadioptrics have to know that these are approved that meet if the required specifications