Lumos Firefly Lumos Firefly 1 2 4 hidden hidden hidden hidden
Lumos Firefly Lumos Firefly 1 2 4 hidden hidden hidden hidden

Lumos Firefly

Meet Firefly the all-in-one smart bike light that acts as both front and rear bike light while enhancing your ride with turn signals, brake lights, synchronized flashing, and convenient magnetic mounting.

$49.95
Bundle:
Lights:
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Lumos Firefly Fit Guide

Measuring your head size
1
Find a measuring tool Use a soft tape, rope or even your charging cable. Place it against a ruler to measure.
2
Measure your head Wrap it around your head, position it mid-forehead and above the eyebrows and ears.
3
Find your helmet size Identify if it’s a good fit. Lumos Firefly fits most head shapes with the adjustable dial fit system.

Determining Your Head Size

Sizing Small Medium-Large Extra Large
Inches 20in. - 21.7in. 21.3in. - 24.0in. 24in. - 25.6in.
Centimetres 51cm - 55cm 54cm - 61cm 61cm - 65cm
Weight (MIPS) 370g 409g 450g
Weight (Standard) - 370g -
Quantity:
Add-on Extra Accessories (Optional):
PRODUCT SPECIFICATIONS
  • Size
    • Length: 1.65" (42mm)
    • Width: 1.65" (42mm)
    • Thickness: 0.78" (20mm)
  • Weight
    • 1.06 oz. (30g)
  • LED Configurations
    • White: 1 LED
      • as Front Light
    • Red: 20 COB ring + 2 high powered LEDs
      • as Rear Light
      • Automatic brake light (with Lumos Remote)
    • Yellow: 20 COB ring
      • as Turn Signals
  • Battery
    • 3.7V 500mAh Lithium Polymer rechargeable battery
    • 5 hours charging time
    • Battery Life: 2.5-35 hours dependent on settings
    • White (Front)
      • 3.5 hrs “Always On” mode
      • 13 hrs “Balanced” mode
      • 32 hrs “Battery Saver” mode (20% brightness)
    • Red (Rear)
      • 3 hrs “High Visibility” mode
      • 10 hrs “Balanced” mode
      • 35 hrs “Battery Saver” mode (20% brightness)
  • Wireless
    • Bluetooth 4.0
  • Certifications
    • Waterproof Rating: IPX7
    • Safety: FCC, CE, UKCA, IC, EN62471
  • LS3 Sync Compatibility
WHAT’S IN THE BOX
Lumos Firefly - Light Only
  • 1 x Lumos Firefly light
  • 1 x Universal Mount kit
    • Velcro Strap
    • Silicone Strap
    • Seat Post Padding
    • Low Profile Padding
    • Press-To-Release clips
1 x Lumos Firefly Charging Cradle Bundle
  • 1 x Lumos Firefly light
  • 1 x USB-C Charging Cradle
    • USB-C Charging Cradle
    • USB-C Charging Cable
    • Interchangable legs
  • 1 x Universal Mount kit
    • Velcro Strap
    • Silicone Strap
    • Seat Post Padding
    • Low Profile Padding
    • Press-To-Release clips
2 x Lumos Firefly Charging Cradle Bundle
  • 2 x Lumos Firefly light
  • 1 x USB-C Charging Cradle
    • USB-C Charging Cradle
    • USB-C Charging Cable
    • Interchangable legs
  • 2 x Universal Mount kit
    • Velcro Strap
    • Silicone Strap
    • Seat Post Padding
    • Low Profile Padding
    • Press-To-Release clips
4 x Lumos Firefly Charging Cradle Bundle
  • 4 x Lumos Firefly light
  • 1 x USB-C Charging Cradle
    • USB-C Charging Cradle
    • USB-C Charging Cable
    • Interchangable legs
  • 4 x Universal Mount kit
    • Velcro Strap
    • Silicone Strap
    • Seat Post Padding
    • Low Profile Padding
    • Press-To-Release clips

4 x Lumos Firefly Quad Charging Mat Bundle

  • 4 x Lumos Firefly light
  • 1 x Portable Quad Charging Mat
    • Portable Quad Charging Mat
    • USB-C Charging Cable
  • 4 x Universal Mount kit
    • Velcro Strap
    • Silicone Strap
    • Seat Post Padding
    • Low Profile Padding
    • Press-To-Release clips
SHIPPING & RETURNS
EU DECLARATION OF CONFORMITY
View EU Declaration of Conformity for Lumos Firefly.
Lumos Firefly
$49.95 USD $49.95 USD


Bundle:
Lights:
Lumos Firefly
$49.95 USD $49.95 USD
Lumos Firefly
$49.95 USD $49.95 USD
Bundle:
Lights:
Quantity:
As seen on Kickstarter - Over $1 million raised!
$ 0
pledged of $60,000 goal
0
backers

In 2022 Firefly became the most funded bicycle light project in Kickstarter HISTORY

Firefly makes you safer on the road by
1 Making you more predictable

Misunderstandings can cause accidents, so make your intentions known to avoid collisions.


Signal your turns. Help drivers help you.

Turn Signals

Firefly has built-in yellow turn signals, making it easy for cyclists to show when they're turning or changing lanes, improving road safety.

Brake Lights

Firefly's automatic brake lights (with Lumos Remote) inform drivers when you're decelerating, enabling them to react in time and prevent potential accidents.

2 Expanding your visibility footprint

Improve your on-road presence by extending your light spread, making you more noticeable and prompting drivers to provide extra space for your safety.

Syncs with each other

Lumos Firefly syncs with each other seamlessly, providing users with a hassle-free experience and improved functionality.

Syncs with your Lumos helmet as well

The Lumos Firefly easily syncs with all Lumos helmets, providing cyclists with a comprehensive safety system for enhanced visibility on the road.

3 Syncing your flashing as a group
Team Sync

With Lumos Team Sync, cyclists can enjoy the benefits of synchronized light patterns for improved visibility on the road.

Commute 2.0

How it works
01
Pair and Configure Lights
Quickly pair your Firefly lights, set up turn signals, and customize visibility settings for a secure and efficient cycling journey.
Pick Your Flashing Mode
Opt for the ideal flashing mode to suit your preferences, with battery life ranging from 2.5 to 35 hours depending on the settings, improving visibility and minimizing the risk of accidents on the road.
02
03
Sync with a Double Tap
Synchronize all Firefly devices effortlessly by double-tapping the power button, creating a comprehensive safety network for group rides and superior visibility.
Firefly light modes
Every Lumos Firefly is packed with powerful LEDs that can function as either a front white light, a rear red light and a turn signal.
Swipe to compare
Front Light
High-powered white LED
Rear Light
Red COB light ring
2x high-powered red LEDs
Turn Signal
Yellow COB light ring
Up to
32
Front light hours*
Up to
35
Rear light hours*
Up to
96
Turn signal light hours*
*Hours are based on the battery saver mode which can be accessed through the app.

Complete Your Kit

Customer Reviews

Based on 187 reviews
72%
(134)
10%
(19)
9%
(16)
3%
(5)
7%
(13)
B
Balogh Csaba
Perfekt

Lumos 4 ever😉😜😜😜

G
George Fleischman
New firefly lights go great with my new helmet on my recumbent racing cycle

It’s so much fun to ride up the night now. The lights work synchronized. With the helmet lights and also potentially with other riders. There is a wireless application for your smart phone that makes everything work together beautifully. It’s a little bit different, I wouldn’t say complex because it’s simple. It’s just something that requires a little bit of read the instructions before you try to do it type thing lol. The way it’s a super bright. The helmet is very reliable and I’ve got the big firefly lights the mini light attached to my whip antenna, integrated turn signals and it all flashes like a Christmas tree on the Fourth of July!. I had somebody tell me how far away they could see me coming and that made me very happy because I raced my wheelchairs and people just aren’t looking for a guy by himself racing his wheelchair up and down the street maximum visibility is the key. The battery life on the helmet is excellent and there are many different flash patterns that cover everything from a basic headlight for night riding to a daytime flash attention getting light. The firefly lights are very versatile and there are amazingly reasonably priced. Each light is $50 but considering they can operate interchangeably as a headlight side light tail light or turn signal I think they’re wonderfully inventive., and such great safe fun! I had people stop me on the street and ask where they could get one of the helmets. And I come back and grab the fireflies that I’ve got matched up with it and that creates even more excitement. I’ve got the whole outfit matched up with my action camera set for extra fun. I also have a real bright auxiliary helmet light that is attached to my new ultra helmet with in Action camera mount. This used to be my primary light, but the battery runs down too fast so the combination is a lot of fun and I can always take the white off the outside of the helmet and interchange it with a GoPro action camera. If I’ve seen this helmet before I bought the exterior lights I probably would’ve just stuck with the Lumos products. That all around I have no regrets. I almost got ran over by a bus before I put these lights on my recumbent cycle. I lay on my back and operate that thing with my arms and my backside is about 6 inches off the ground even when I’m in the bike lane people are not looking for something that looks like an oversize roller-skate With a person laying on the back LMAO . It almost looks like a runway stretcher! I’ll take some pictures of all the way it’s working together with the helmet on my recumbent. The accessory turn signal switch that’s available at a modest extra price is worth the money because it helps integrate all the lights together with the helmet and as a bonus, it has a sensor That activates a brake light for you. The turn signals even make a tone to remind you to turn them off after you make your turn. I am a space systems integration engineer by trade and this is some exceptional engineering, especially for a consumer products! Keep up the good work! I will keep adding to my collection with my next check. Shine light everybody you’ll never regret it.

J
Jochen
Great product and company

I use the Lumus Ultra E-Bike helmet in combination with four Lumos Firefly and I really quickly learned to love this combination.There were many situations where it was perfectly clear that I was being detected in time because of this lighting setup. After about 12,000 kilometers of commuting in about a year and a half, there were some unexpected problems, but the fast and unbureaucratic service of Lumos convinced me even more. Next to a good lock, a water bottle and an air pump the best thing you can do for a good ride, I guess.
(By the way, turn signals mounted directly on an E-bike are now legal in Germany)

B
Bart
Great Product

I love the added visibility of using the Firefly lights synched with my Lumos helmet. The app works great and is very intuitive. This is a great workaround for added safety. I can't wait until integrated lights are standard on cargo e-bikes, if you can't wait either, this works well for existing bikes without integrated signal lights.

A
Andrew Heymsfield
Buy one

This was actually for the Lumos Firefly, which is bright with many different settings

FAQs

Everything you need to know about our product
Can’t find the answer you’re looking for?
Please chat with us

Can each Lumos Firefly have different light colors or functions?
Yes, it’s an all-in-one light! One Lumos Firefly can be used as a front or rear light and with or without turn signals. You can change the function of the light as often as you like within the Lumos Companion App.
How bright is Lumos Firefly?
We do not have an official Lumen rating on our products as this depends on many factors, like amount of lights, light pattern etc. Here's why.
Where can the bike lights be mounted?
Lumos Firefly comes with one universal mount, silicone strap & velcro strap and 2 paddings so it can be mounted on several types and shapes of handlebars, the seat post, rear rack, bike trailer, backpacks and even your body. Just note that the silicone strap stretches up to 15cm (~6 inches).
How can I activate the turn signals?
You can activate the turn signals with the Lumos App. They can also be activated by the Lumos Remote (optional), which can be included with your perk an add-on.
Does it come with the Automatic Brake lights?
The Lumos Firefly comes with an optional brake light feature. If you wish to have the automatic brake light feature, then you need the Lumos Remote that has a built-in accelerometer required to activate the brake lights on your Lumos Firefly bike light.
How long does the battery last? What is the charging time?
With a 500mAh rechargeable battery inside, Lumos Firefly will last up to 35 hours, depending on the settings. Choose a hi-vis mode for maximum visibility on the road or battery-saver mode for the longest-lasting mode of up to 35 hours. It takes about 3-5 hours to fully charge your Lumos Firefly, and you can check the battery level in the Lumos App.
Why a wireless charger?
As part of our effort to make the bike lights as durable and weatherproof as possible, we decided early on that we would do away with a charging port and push for wireless charging. You can charge one Firefly at a time with the Lumos wireless charger or use your own universal charger. Firefly uses Qi, the global standard for wireless charging, so it should be compatible with most chargers on the market.
Is it weatherproof?
Yes, you can always bring Lumos Firefly on your rides. Come rain, come shine. Thanks to the wireless charging, Firefly is water-resistant and can easily be mounted on your bike, trailer, backpack, you name it.
Is the Lumos App compatible with Android and iOS? Can 1 phone control everything?
You only need a smartphone and the Lumos Companion App to control all your Lumos Fireflies and/or Lumos helmets. You can change the light settings in the app, which is compatible with Android as well as iOS.
Is Lumos Firefly compatible with my Lumos helmet?
The bike lights are compatible with the Lumos helmets: Kickstart, Matrix and Ultra, and the Lumos Remote. You can simply sync your Lumos products in the Lumos Companion App.Note: Lumos Firefly is not compatible with the (round) Remote Lite.
I don’t have a Lumos helmet. Can I use the Lumos Firefly?
Definitely! You can use one or more Lumos Firefly lights with or without a Lumos helmet.
Are the (flashing) lights allowed in my country?
Firefly has different light settings so you can always set them on the solid mode when needed. While in most areas flashing lights are allowed, traffic and (bicycle) lighting regulations differ in each country. We recommend checking the regulations of your area with the local authorities.
Do the lights meet the requirements of the StVZO in Germany?
At this moment it does not meet the StVZO requirements as flashing lights are forbidden in Germany when mounted on a bike. That said, flashing lights are allowed in traffic for example on helmets, backpacks etc. as long as they are not attached to your bike directly.
If you’re cycling anywhere other than German roads, you do not require a light that's StVZO certified.
Does it have any certifications?
Naturally! Firefly complies with the electronics regulation standards and is certified accordingly. Lumos Firefly is certified to the relevant requirements as set out by the FCC in the US, CE in EU, and UKCA in the UK.
Have more questions that aren't answered here?
Please visit our support page.
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