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Lumens are a measure of the total amount of visible light from a light source. The higher the lumen rating the “brighter” the light will appear.
The rebirth of an iconic bicycle light, the Frog Rear Bike Light: bright, versatile & fun. A design that millions of riders around the world have come to love. Powerful enough for everyday commuting or used to complement an exisiting lighting set-up.
The rebirth of an iconic bicycle light, the Frog Rear Bike Light: bright, versatile & fun. A design that millions of riders around the world have come to love. Powerful enough for everyday commuting or used to complement an exisiting lighting set-up.
Taking cues from Knog’s more advanced lights, Frog is designed with Chip on Board LED technology, enabling a high intensity light that's compact, low profile and packed with features.
- Punchy 20 lumen output
- Integrated flexible mounting system
- 9 eye-catching modes
- Water resistant with IP65 rating
- Super lightweight at just 20 grams
- USB-C rechargeable (cable not included)
- Curved lens provides side illumination
- Battery level indicator
- Up to 60 hour runtime
- Simple one-button operation
- Available in 6 fun-loving colours
MODE | LUMENS | RUNTIME |
High |
7 |
3 hrs |
Low |
1 | 15 hrs |
Side Flash |
11 | 4 hrs |
Full Bright |
20 |
7 hrs |
Back To Front |
5 | 13 hrs |
Front To Back |
8 | 6 hrs |
Side To Side |
6 | 5 hrs |
Rotation |
6 | 13 hrs |
Eco |
4 | 60 hrs |
Free shipping to Continental USA on orders over $50 and just $6 on orders under $50. We'll ship it asap, and have it delivered within 2 - 4 business days.
Returns & Exchanges
We stand behind everything we make and want you to be happy. If for any reason you're not satisfied with your purchase, return it within 30-days for a full refund. We'll even pay the shipping. For more information, please see our Returns & Warranty page.
Shipping on Knog's US website is available to Continental USA customers only. If you're shopping from another location, please visit our international store.
The Frog light is fantastic, super bright, dig the rounded shape, all the settings. I really will never buy another bike light.
I bought 2 rear lights for my mountain bike. The lights have been perfect! They recharge easily and hold their charge well while riding.
What a great product - light, tiny, versatile (I attached it to my helmet) and bright! The nine light functions are cool. My only (minor) beef is that I have to detach it to charge - but I guess it ensures the unit stays water proof. I thoroughly recommend this product. Andy, Wollongong
I bought this light for when I have to ride pavement to access trails. It’s great! It would be perfect if the strap thingy was a few millimeters longer. It’s a tight fit around my OneUp dropper post, but not a significant concern. I definitely recommend this light.
I bought two of these to use on my kids' bikes. Previously we'd used some bargain lights bought from a big online retailer but they were clunky and not always reliable. Super happy with the form factor and brightness of these rear lights.