Frog Rear Bike Light
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 0.7 oz
- 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 |
- Frog Rear Bike Light
Free shipping to Continental USA on orders over $65 and just $8 on orders under $65. We'll ship it asap, and have it delivered within 2 - 5 business days.
Need Knog delivered by December 24th? Order by Tuesday 17th December 2025.
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.
