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CatEye HL-EL520 Headlight

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Item # CAT0007

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Item # CAT0007


The Cateye HL-EL520 Headlight is a nice upgrade from the less expensive HL-EL135 since a greater contingent of batteries gives it longer run times and more ultimate power to light your way on dark nights.

The Cateye HL-EL520 headlight boasts Opticube Lens Technology that ensures a crystal clear lens and a reflector that is optimized to make the most of the single, high power LED light source, shaping the beam pattern for its intended use. Also new are openings in the side of the housing to let some of the light be seen from the side, making you safer through intersections.

With the Cateye HL-EL520, the four AA batteries are contained inside the light housing so there won't be any wires to fuss with. And the tool-free FlexTight mount is a cinch to install on any handlebar from 22-32mm in diameter. It has two beam settings, low and high, and you'll get 150 or 75 hours respectively before you'll need to change the batteries. The HL-EL520 has a maximal 1800 candlepower on the high setting. We find that this is plenty for high speed riding on the road or paved path, though you might want for more if you ride on trails at night. The system weight is around 186 grams with batteries.

Tech Specs

Bulb Type:
Power Source:
AA alkaline
Backup Power Source:
Battery Location:
Burn Time:
150 hours
Claimed Weight:
186 g
Recommended Use:
touring, commuting, night rides

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Unanswered Question

how much lumens is this light powering up...

how much lumens is this light powering up to?

Works well

    This is not a knock on the light itself, but this light was a bit bigger than I expected when it arrived. It would be nice to get pictures showing approximate size compared to something common. As for the light, it works well. The adjustable attachment system worked well on my handlebars and holds the light very securely. The quick detach is nice so that I can take it off easily when I lock my bike up somewhere. The two light modes aren't incredibly different, but it is nice to save some battery life when I don't need a bright light.