Frog Rear Bike Light

20 Lumens

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.

$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
FREE DELIVERY 
OVER $50
30 DAY 
 RETURNS
2 YEAR 
WARRANTY

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

    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 - 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.

Design & Tech

Customer Reviews

Based on 5 reviews
80%
(4)
20%
(1)
0%
(0)
0%
(0)
0%
(0)
J
James
Best Dang light on the planet

The Frog light is fantastic, super bright, dig the rounded shape, all the settings. I really will never buy another bike light.

B
Brian Barnett
Rear Lights

I bought 2 rear lights for my mountain bike. The lights have been perfect! They recharge easily and hold their charge well while riding.

A
Andy Davis
Bright spark!

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

R
R.V.
Happy Customer

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.

M
Mike Oelrich
Works Great

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.

'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 5 reviews
80%
(4)
20%
(1)
0%
(0)
0%
(0)
0%
(0)
J
James
Best Dang light on the planet

The Frog light is fantastic, super bright, dig the rounded shape, all the settings. I really will never buy another bike light.

B
Brian Barnett
Rear Lights

I bought 2 rear lights for my mountain bike. The lights have been perfect! They recharge easily and hold their charge well while riding.

A
Andy Davis
Bright spark!

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

R
R.V.
Happy Customer

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.

M
Mike Oelrich
Works Great

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.

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