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RRP £28.00
Busch&Muller Lumotec IQ Avy N 30 Lux
Busch & Muller Lights, Dynamos & Mirrors : Front Lights For Hub Dynamos
Busch&Muller      Lumotec IQ Avy N 30 Lux - Click to enlarge.
Avy - Click to enlarge. Avy - Click to enlarge.

Specification

Available in:
  • 40 Lux
Description
    The Avy belongs to the new generation of Busch & Muller lights. It is almost as slim as its successful brother the EYC. With IQ technology inside giving 40 lux and good, homogeneous illumination of the road it is the ideal middle band headlight. Technically absolutely up to date giving a very reasonable price performance ratio

    For use with hub dynamos only
Key Features
  • Hub dynamo light with switch
  • IQ-TEC gives over 40 lux
  • With near view illumination
  • On off switch
  • Optional front reflector
  • No standlight
  • An optional pluggable reflector is available
Accessories
    Clip on reflector
Mounts
    Stainless steel mount
How To Recognise A Good Head Light
    Illumination levels of headlights can be measured using different units - e.g. Lux or Lumen. B&M states the light output of headlights using the unit Lux. A Lux value provides the illumination level in relation to its distance from the light source. It is exactly this relation which is a deciding factor when considering a headlight, because it states the amount of light on the road. The value Lumen in turn states how much light exits the headlight at the light source, no matter if the light shines onto the road or is lost as stray light. That is why this value as excellent as it might sound can be very misleading

    However even the Lux value provides only partial information about the out put of a headlight. Also important is the quality of the light field which is created on the road. Its width and depth; its light quality that is both homogenous as well as comfortable to look at with the human eye and its Lux values does not say it all. And finally its glare free light/dark boundary are all qualities that cannot be stated using just measured data. What is important is how and what the rider can see for safer more comfortable riding

    It is notable that some manufacturers cite "visibility from x metres" as a means of evaluating headlamp quality, a rather meaningless value. There is no objective measuring method and the safety gain is only an individually perceived factor because it implies ideal conditions (i.e. no interfering light, "clean" air, unhindered visibility, universally identical abilities of human eyesight ...) that in reality do not exist. That is why B&M forgoes quoting a value that they consider useless and that only feigns objectivity. The most relevant question is this: Is there any real value in being seen from a distance of 1000 metres?
Light At Close Range
    For a secure ride it is important to be able to see the road directly in front of the bicycle. Bumps or potholes in the road can be seen better if this area is lit and can be circumnavigated by short and intuitive steering. During darkness this is only possible if the area between one and four metres in front of the bicycle is lit brightly and homogenously. Subjectively the need for light at close range is higher the slower one is riding, because one's balance can more easily be influenced by obstacles. "With light at close range" means that the light field emitted by the B&M headlights starts directly one metre in front of the bicycle
IQ Technology
    IQ Technology: The Light Revolution

    The core of IQ-TEC is the revolutionary idea not to use a high output LED as an indirect light source. The complete reflective surface is used to focus and guide the light. If one looks into the reflector of an IQ headlight one only sees the metalised surface. Once the headlight is turned on what takes its place is "nothing but light". Since 2007, B7Ms innovation has continually been developed further.

    Conventional technology: A light source sits in the centre of the reflector. The result: stray light and loss of efficiency.

    B&M have developed state of the art technology called "IQ2 TEC" and "IQ-TEC PREMIUM". In comparison with the first IQ generations, the new IQ-TEC versions offer double the light output and an almost twice as wide, very extensive field of light. Everybody who has cycled with an IQ TEC headlight at night will never again want to do without this light experience
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