Smart 3 LED Rear Light

The Smart 3 rear bike light is a great safety light for those on a low budget. When used alongside your main rear light system it provides great additional visibility. The 3 powerful LED?s can be seen from up to half a mile away and come with 3 light modes - constant, flashing and rotary.
If used with another light the rotary mode gives the Smart 3 a massive 260 hours burntime. This is great as you won?t need to replace the 2 AAA (included) batteries often. Even on constant mode you get a very decent 80 hours burntime.
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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