Frog Rear Bike Light

20 Lumens
$27.95 USD

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. 

Color

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

    Bike Rumor 2022 Editor's Choice               Good Design Award Winner
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 - 5 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.

Customer Reviews

Based on 12 reviews
83%
(10)
17%
(2)
0%
(0)
0%
(0)
0%
(0)
C
Customer
The Versatile Frog

The Frog Rear Bike Light is quite versatile offering several lighting modes. I found it to be the best option for my bike as it could install in different spots since its flexibility allows it to wrap around different size points. In my opinion, the full single charge also provides a long battery life.

K
Katrina Roche
Versatile light

Easy to use. Lots of modes . Seems pretty bright.

C
CK
Frog Rear Bike Light

easy to use & bright light to ensure you are seen.

J
James

Ultra-Bright light! No way you cannot see me!

A
Alan Cortazzo Jr l

I forgot one thing. You have to feel around for the button on the circuit board. It might've helped if they put a button on the rubber where the button on the circuit board is. The button on the circuit board is so small that you have to prees the rubber in the exact right spot or you'll miss it.

I don't know if it's because of this or because I use the light a lot, but there's a divot in the rubber where the button is. There's also a half inch diameter ring in the rubber around the divot. I don't know if that was there when I got the light. Maybe that ring is their lazy way of indicating where the button is. But I still love the light.

'the bike light that changed bike lights forever.'

An icon re-born.

Brighter and better than before.

COB LED Technology

Efficient Chip on Board (COB) LEDs provide maximum brightness level for up to 90% of the battery burn time.

Advanced Side Visibility

COB technology allows the LEDs to be arranged on a curved board, projecting light from the sides & adding to rider safety.

One Button Operation

A single large, easy press button makes the operation of these lights super simple, even in gloves.

Integrated Flexible Mounting System

With no tools required to mount Frog and featuring an integrated flexible strap, Frog is easily mounted anywhere.

Technical Specifications +-

BULB TYPEChip On Board (COB) LEDs
LIGHT OUTPUT MAX20 lm
RUN-TIMEUp to 60 hrs
PROGRAMMABLE WITH MODEMAKER
No
WATERPROOFYes, IP65 rating
LIGHT MODES9
RECHARGEABLEYes (USB-C)
LOW BATTERY INDICATORYes
FITS HANDLE BARS22.2mm to 32mm diameter
DIMENSIONSH: 80 mm x W: 35 mm x L: 42 mm
WEIGHT20 gm / 0.7 oz
OPERATING TEMP-4 to 122 °F
STRAP MATERIALMedical grade silicone
OPTIMUM CHARGING TEMP
68 to 72 °F (Room Temperature)

User Guides +-

Language Download
Frog Quick Start Guide (EN)

Customer Reviews

Based on 12 reviews
83%
(10)
17%
(2)
0%
(0)
0%
(0)
0%
(0)
C
Customer
The Versatile Frog

The Frog Rear Bike Light is quite versatile offering several lighting modes. I found it to be the best option for my bike as it could install in different spots since its flexibility allows it to wrap around different size points. In my opinion, the full single charge also provides a long battery life.

K
Katrina Roche
Versatile light

Easy to use. Lots of modes . Seems pretty bright.

C
CK
Frog Rear Bike Light

easy to use & bright light to ensure you are seen.

J
James

Ultra-Bright light! No way you cannot see me!

A
Alan Cortazzo Jr l

I forgot one thing. You have to feel around for the button on the circuit board. It might've helped if they put a button on the rubber where the button on the circuit board is. The button on the circuit board is so small that you have to prees the rubber in the exact right spot or you'll miss it.

I don't know if it's because of this or because I use the light a lot, but there's a divot in the rubber where the button is. There's also a half inch diameter ring in the rubber around the divot. I don't know if that was there when I got the light. Maybe that ring is their lazy way of indicating where the button is. But I still love the light.