Giant Numen HL2.0 Headlight
The Giant Numen HL2.0 is a very capable front bike light for anyone riding in a lit town or city. The single LED sends out a strong beam - optimized by Giant?s advanced optical lens. You get a choice of 3 light modes to switch between including high, low and flashing.
On flashing you get a maximum burntime of up to 60 hours which is great for such a compact bike light. The Numen HL 2.0 also comes with a very handy low battery indicator so you know when the battery is about to run dry.
Fitting takes seconds with the easy mount bracket, and will fix to many standard handlebar sizes. For commuters or urban riders this bike light is ideal.
Occasionally, without notice, manufacturers change product design and/or specifications.
Light measurement guide
CANDELA The actual amount of light output at the source, similar to volume of sound coming out of a speaker in all directions. One candela = the light intensity of a household candle.
LUMEN The amount of light (light density) that reaches you at a set distance (1 metre) and angle, similar to how loud the sound would appear to you a metre away from the source.
LUX The amount of reflected light from a surface. If you shone a torch at a dark wall, LUX is the light coverage you can see reflected on the surface.
WATT A measurement of power (electricity) rather than a light output. LEDs are measured differently to household, incandescent and florescent bulbs.
What do you NEED to look for?
All lights have a focused beam so it is difficult to compare Lumens and Candelas.
COMMUTING Get the brightest light your budget can afford, with the best features.
OFF ROAD LIGHT A unit with at least 1000 lumens is a good benchmark (500+ is ok but hard to see at faster speeds.
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