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Lezyne Femto Drive Rear Light


Item # LED0173

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Item # LED0173

The Femto Front Light's not-so-evil twin.

A perfect match for the Lezyne Femto Front Light, the Femto Rear Light looks just like its sibling but sports a red lens and puts out 7 lumens instead of 15. 

The Femto Drive Rear Light's durable CNC-machined aluminum body is weather-resistant, dissipates heat to protect the batteries, and won't rust no matter how long you leave it outside. The Femto's red lens doubles as its on/off button for a super-clean, button-free look. You can use the lens to cycle through four flash modes and one steady mode, as well.

The Composite Matrix back plate can be unscrewed to replace the two CR2032 disposable batteries, and the multi-position silicon-rubber strap can be moved to angle the light side-to-side or straight back. The Femto provides 7 lumens of light to make you more visible in traffic. The batteries provide 30 hours of burn time in steady mode and 60 in flash.

The Lezyne Femto Rear Light is available in Black, Blue, Silver, or Red and is compatible with just about any bicycle seatpost.

  • 7 lumen output makes this a backup ‘be-seen’ light
  • 60 hour run time in flash mode, 30 hours in solid
  • Straps onto any seatpost
  • Runs on a CR2032 watch battery

Tech Specs

Power Source:
CR2032 batteries
Batteries Included:
Flash, Steady
Burn Time:
(Steady) 30 hours, (Flash) 60 hours
Claimed Weight:
22 g
Recommended Use:
Manufacturer Warranty:
2 years

Reviews & Community


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Small form factor

  • Familiarity: I've put it through the wringer

Great size with good finishing. Have these for almost a year now without having to change the battery ( used at least twice a week)
Anodized orange is a cool color for riders looking for some contrast under the saddle.

be seen, be safe

  • Familiarity: I've put it through the wringer

Extremely fast and easy to pop on or off of your bike/gear. Will fit on any bicycle bar/post I've never used the belt clip. Enough light to let you be seen. No problems whatsoever. I would recommend and/or buy again.

Great little light, great price

    This little guy puts out a great red warning to drivers with its various flashing modes. It's crazy how bright it is for being so little and inexpensive. Its size and shape look sleek on the bike. My one complaint would be that the red one I ordered is more of a pink color, so I just went with the black

    Simple and Effective

    • Familiarity: I've put it through the wringer

    This light is a super simple design, I have both the front and rear and I couldn't be happier. At a price that doesn't break the bank you get a light that has 5 settings. At only 7 lumens it doesn't put out a ton of light but it does allow you to be seen. A great economical choice for lighting up your bar bike.

    Matthew Pizza
    Expert Gearhead


    • Familiarity: I've put it through the wringer

    This light attaches and detaches with a durable elastic band, and the battery lasts a long time. I've had it a couple months and used it multiple times a week, and the light still shines bright, on all three settings.

    Simple is better

    • Familiarity: I've used it several times

    Attach in 20 seconds with no tools, super compact, and does its job. I love how small it is and that it comes in different colors. Plus it just works!

    Quality and Value

      It does what it needs to do. This light has a super easy attachment method, which is great. It is small and light but still produces enough light for you to be seen. This isn't a top of the line bike light, but for the price I would say it is a solid investment for some nighttime cruising.

      Bright, small, simple, lightweight

      • Familiarity: I've used it several times

      This is a great LED bike light. Rubber stretchy thing just hitches onto your seat post. Push the light and it turns on. Pretty handy.

      Car's dont hit me

      • Familiarity: I've put it through the wringer

      I bought this light because biking in the city is sketchy! So far nobody has hit me so I guess it has been a success. This light strobes in different sequences or stays bright red. I recommend it!

      Avg. ride time: 53m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      Femto Rear Orange

      The clip on the back of the light is chamfered to get the light closer to horizontal when mounted on the seatpost.

      Femto Rear Orange
      Avg. ride time: 53m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      Lezyne Femto Drive Rear

      Lezyne Femto Drive rear light in orange

      Avg. ride time: 3h 29m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      Commuting and Training Light

      • Familiarity: I've used it several times

      I recently got the rear light and it has been awesome. It is easily to turn on and off while riding, and also very easy to remove from my seatpost to a backpack. I like it for my evening commutes to the store or the bar, but it also is great for those foggy gloomy training days in the mountains. It keeps me visible and gives me great piece of mind.

      a great light for the everyday commuter

      • Familiarity: I've put it through the wringer

      this light has separate functions depending on how fast you'd like it to blink, and the battery lasts a long time. it's bright enough for cars to see you from a good distance, and it turns on and off easily. no hassle, highly recommended!

      Good Value

        I needed to grab a rear light for my circa 1995 ex-mountain turned commuter whip. This would require something that functions and cost me fewer than 20 bones.

        Enter the Lezyne Femto!

        It works, and it hasn't let me down yet. It took me a hot minute to figure out that you depress the actual light for 3+ seconds to turn the light on. But I never claimed to be good at bikes, so I eventually figured it out.

        For a cheap light, this does the job and it's a cinch to install - which I like. Simply snap the rubber around the bicycle part of your choice and pedal into the dusky horizon.

        Wear a helmet too. Helmets are cool.

        Great Light

        • Familiarity: I've put it through the wringer

        All you need in a rear light. Does its job and does it well. Stays on the bike and has multiple settings. Easy to change the battery. This has a 2nd job of a dog indicator light. I use it on my pup while camping to see where she is at night.

        When I got this light, I'mma light it up

        • Familiarity: I've put it through the wringer

        Riding at night is sketchy, and often times illegal if you do not have front and rear lights, so I picked up a Femto Drive rear light to pair up with my front one and it has worked out really well, I swap them between my two bikes and they are quickly off my bike and stored safely in my backpack when I lock up my ride, and ready to keep my ride lit up in seconds.

        Didn't work

        • Familiarity: I've used it once or twice and have initial impressions

        I bought femto front and rear lights for my wife's cruiser, and the rear one didn't work. The button on the rear light would stick and made it useless. Chainlove refunded my money, but I wouldn't buy this. It's weird, since the front on works so well.

        Sorry Lezine, but not

          I choose this light because the design and because I has a multi tool that I love it,but maybe the light business is not the strong stuff. When i received it came in nice package and the overall quality was very good. Installed for a ride with my friend inside the city and it worked very good, it was the first, last and unique time that this light worked. I changed batteries, reviewed the old batteries, inspect visually where the batteries sit if any problem , but nothing... this light never shined again.

          Never again will buy a product just because I trusted the brand, I will wait to others try first.