Bike Helmet Light mounted on helmet
Bike Helmet Light beam pattern
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Bike Helemet light beam patterns
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Winter riding with the bike helmet light
Bike Helmet Light side view with action camera mount
bike helmet light beam pattern simulation
american made bike helmet light
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Hangover Bike Helmet Light
Hangover Bike Helmet Light

Hangover Bike Helmet Light

  • Featherweight wireless helmet light for singletrack

Regular price$135.00 USD
Shipping calculated at checkout.

Select Your Helmet Mount

Looking for the ultimate setup? Check out our Evo Downhill Package!

Customer Reviews

Based on 823 reviews
Marlene W. (Norridge, US)
Awesome light and co

This bike light is the best there is and this company has won my business for all future bike light purchases.

Miranda G. (Hillsdale, US)

Could not ask for better quality and function.
Shipped almost instantly.
Have used this for 24 hour MTB races (own multiple and swap them out every handful of hours) and night time alpine touring skiing.
No complaints.
Very appealing product that is built in the USA.

Matt M. (Portland, US)
Hangover debut

First use at a 12 hour mtb race in Bend, OR. The last hour was in darkness. I was very pleased how easy it was to turn on/off with gloves on while riding. The light beam lit up the trail very well. I could easily see objects and up the trail. Highly recommend this light!

Dustin W. (Charlotte, US)
High quality light

The light is quite robust in its build and the light quality worked well for me riding through the Donner Tunnels, CA, upon my first use.


Excellent warranty and customer service

Allen B. (Las Vegas, US)
Best customer service in the industry

My son crashed pretty hard and broke his helmet and the hangover light. I emailed for a replacement part and the owner emailed me back the next day apologizing that the light broke and fixed it at no charge. I didn’t feel it was a product defect because it was a high impact crash and did not expect it to be covered under warranty. They had my light back to me the same week with a new lower shell. They are also the brightest lights on the trail with a usable light color. I can’t say enough good things about this company and their products.

Why build the best bike helmet light?

When we launched the Trail Edition back in 2017 it was a game changer for bike lights. A beam pattern specifically designed for trail riding with a wide evenly illuminated distribution. However we had lots of requests to build a helmet light instead of just a handlebar light.

So we got to work, figured out what is important for a helmet mounting, fine tuned the beam pattern and optimized everything else to come up with the lightest, longest lasting, and most powerful helmet-specific bike light out there.

Read on for more nerdy design details!

Hangover bike helmet light

Helmet Specific Beam Pattern

When we developed Hangover’s beam pattern, we knew we wanted to better balance a narrow spot for throw down trail with a smoother transition to eliminate the tunnel vision you get from the off-the-shelf flashlight-style lights on the market.

We employ blended Total Internal Reflection (TIR) optic features to meticulously shape the beam from the high-intensity center with an even gradient to a soft fall-off covering all the peripheral around the rider, avoiding distracting beam artifacts while giving the rider a better sense of balance.

Check the slider comparison below to see the difference between a fine tuned optical instrument such as Hangover vs a name-brand light that has been around for years.

bike helmet light with USB C charging

USB-C pass-through charging

Everyone has USB charging ports all over nowadays, so we make sure you can use any of them with Hangover, and not just some proprietary charger that you can only get from us. Even better, if you use a QC3.0-rated charger, you can get 85% charge in just one hour (24-hour racers rejoice!).

But we took that concept one step further and added Pass-Thru Charging to allow you full access to all output modes of your light while charging from an off-the-shelf USB Power Bank, so that you can extend runtime for those epic adventures, without limiting the light available to you (bikepackers rejoice!). We even customized the included USB-C cable with a right-angle connector to make cable routing on the helmet clean and easy.

Rock Solid Helmet Mounting

Helmets are like snowflakes, each one their own unique, ornate shape…that’s why we built Hangover with built-in tabs for standard “action camera” mounts, because they just work, and you don’t have to rely on some proprietary design from us.

We tucked the mount in low on the backside to keep the weight low, minimizing neck strain on long rides, and reducing the likelihood of low-hanging branches ruining your day…er, night.

Simple User Interface

Few people read instruction manuals, even fewer want to, so we keep our lights dead simple so that you don’t need an advanced degree to remember some complicated sequence of button presses get to the mode you want.

Hangover’s soft-touch overmolded top shell has a single, large button right in the middle that’s easy to feel through a thick winter glove in the dark, so you don’t have to hunt blindly around on top of your head just to turn it on.

Four simple modes cover the majority of use cases from set-it-and-forget-it pedally XC to long-climb-fast-descent Enduro rides – Adaptive / High / Medium / Low – and no SOS or seizure inducing strobes stuck in between.

Bike Helmet light large easy to use button
Assembly worker building bike lights in ChicagoAssembly worker building bike lights in Chicago

Designed & Assembled in Chicago, IL

Skillfully built by our passionate team while listening to a lot of podcasts.
electronic circuit board for bike helmet light

Electrifying design

We like to keep our lights simple on the outside for the user, but that doesn’t mean we’re skimping on the guts inside. The constant-current driver maintains rock solid regulation through the Cree LEDs over the entire voltage range of the genuine LG 18650 cell with a unique battery monitoring algorithm to give you accurate feedback without interruption.

Complete with fast QC3.0 USB-C charging and Pass-Thru capability to boot, we engineer the electronics to maximize efficiency and runtime while minimizing charge times, all without any proprietary connectors that could leave you stranded. We’re always pushing the limits internally to deliver new feature sets that provide real value to the rider, not just fancy names.

Thermal Engineering

LEDs produce heat, they’re not magic, it’s just a fact. Getting the heat out of the LEDs efficiently without sending it into the rider’s hands is paramount for reliable and safe operation, so we pulled from our background in automotive lighting by employing magnesium for the thermal mass in Hangover to both reduce weight vs. aluminum and reduce the case touch-temperature.

Optimizing airflow across the cooling channels when riding sheds heat fast, allowing us to make the light smaller and lighter than competitors without requiring aggressive thermal controls in the firmware to throttle back output to keep the light cool. Of course, we have controls in the firmware for safety, the difference is you won’t need them on the trail with Hangover.

bike helmet light with thermal cooling system


Lumens ~ 1000 lumens
Battery LG MJ1 18650 3500 mAH capacity
Weight 105g Hangover Lighthead
20g Action Camera Mount
Modes Adaptive - High - Medium - Low
Daytime Flash/Nighttime Flash
Materials Thermally Conductive Nylon (CoolPoly) lower shell
ABS Action Camera Mount
High Strength polycarbonate substrate
Soft touch TPU overmold
High clarity PMMA lens
Electrical Features Thermal protection circuit
Constant current step-down converter
Battery management system
QC3.0 USB-C charging
Pass-through charging
Low Battery warning
20 minute "get-home" buffer in every mode
What's in the box Hangover Lighthead
Curved Helmet Mount Base
(Wide mount and notched mount available)
3M adhesive pad
USB-C to USB-A charging cable
Instruction Manual (Download HERE)

Hangover Runtime

Mode Runtime
Adaptive 1.6 h (100 min)
High 1.1 hr (72 min)
Medium 2.9 hr (170 min)
Low 6.5 hr (390 min)
Daytime Strobe 6.5 hr (390 min)
Nighttime Flash 3.0 hr (180 min)
outbound lighting employee photo tomoutbound lighting employee photo tom

Industry-Best Customer Support

3 year warranty + Lifetime customer service support backed by a real person. (yes, that's Tom)