OLIGHT RN 120 C Rear Bike light 120 Lumens with Smart Brake Function Bicycle Taillights Type-C Rechargeable Ultra Bright IPX6 Waterproof for Day and Night Riding Safety, Warning Mountain Cycling

OLIGHT RN 120 C Rear Bike light 120 Lumens with Smart Brake Function Bicycle Taillights Type-C Rechargeable Ultra Bright IPX6 Waterproof for Day and Night Riding Safety, Warning Mountain Cycling

Q: How long does a charge last on RN 120

Depends on the mode you use it in, I think, but it’s good for 12 hours or so

Q: A couple of reviews mention the light turning off...is this in smart or interactive mode? can this be overridden by using a different mode?

I cannot answer your question as I only tried to use it a couple of times, I found it to be poor and unreliable, with a full charge it only lasted half an hour or so. Very dissapointing.

Q: Does this fir under a Brooks B17 saddle?

My OLIGHT RN 120 came with TWO forms of mounting bracket, both of which should work with all conventional saddles. 1). There is a simple frame made of springy plastic that clips on to the saddle rails. It provides a bayonette mount facing backwards that the lamp clicks on to with a clockwise twist. This frame can come unclipped if mishandled, so a couple of small cable ties are supplied to secure it. 2). A similar bayonette mount on a silicone rubber strap is also part of the kit. It will fit under the saddle on the seat tube like most cycle rear lights do. Naturally, you will need to ensure that nothing is mounted behind either mount to prevent a clear view of the light from the rear. On my electric bike I have a large wire mesh basket that is taller than the saddle, so I fastened the strap-on mount to the back of it using the two cable ties through the mesh. I did not need to cut the strap at all, which is good if ever I want to reuse it. I hope this is helpful.

Q: How do you turn on the brake mode? I have tried all three modes (flash, constant, smart) and none seem to activate the brake mode

Two things got this to work for me, make sure the button is facing up, and from off, press and hold for 5 seconds.

Product ID: 235316453

Secure Transaction

Details

Colour
Black
Brand
OLIGHT
Material
Plastic
Power source
Battery
Water resistance level
Waterproof
Item weight
26 Grams

💡120 lumens

🔋USB-C rechargeable

🌧️IPX6 waterproof

Frequently Bought Together

OLIGHT RN 120 C Rear Bike light 120 Lumens Type-C Rechargeable Ultra Bright Smart Bicycle Taillights, IPX6 Waterproof for Day and Night Safety Warning Mountain Cycling

OLIGHT RN 400 Bike light 400 Lumens USB Rechargeable Bicycle Headlights IPX7 Waterproof LED Safety and Sensing Mountain Cycling for Daily Commuting and Urban Riding

Description

🚴‍♂️ Light Up Your Ride, Day or Night!

RAPID RECHARGE - Fully charged in just 1 hour via USB-C.
EFFORTLESS OPERATION - User-friendly controls for quick mode changes.
ILLUMINATE YOUR RIDE - Experience a powerful 120 lumens for maximum visibility.
MOTION ACTIVATED SAFETY - Automatically lights up when braking for added awareness.
SMART SENSOR TECHNOLOGY - Ambient light sensor adjusts brightness for optimal safety.

The OLIGHT RN 120 C Rear Bike Light is a high-performance taillight designed for cyclists seeking safety and visibility. With a maximum output of 120 lumens and a 260-degree visibility range, it ensures you are seen from afar. The light features an IPX6 waterproof rating, making it reliable in various weather conditions. Its smart motion sensor activates during braking, while the ambient light sensor adjusts brightness based on surroundings. Rechargeable via USB-C in just one hour, this taillight is a must-have for any serious cyclist.

Specifications

Color	Black
Height	3.2 millimetres
Item display length	3 centimetres
Weight	26 g
Item display width	3.4 centimetres
Material type	Plastic
Number of items	1
Power source	Battery Powered
Sport	Cycling
Batteries included?	Yes
Brand	OLIGHT
Manufacturer	OLIGHT
Item model number	300016-RN120C-UK
Product Dimensions	3.5 x 3.4 x 3 cm; 26 g
ASIN	B08HH95ZZM

Have a Question? See What Others Asked

How long does a charge last on RN 120

A couple of reviews mention the light turning off...is this in smart or interactive mode? can this be overridden by using a different mode?

Does this fir under a Brooks B17 saddle?

How do you turn on the brake mode? I have tried all three modes (flash, constant, smart) and none seem to activate the brake mode

Reviews

T**N

Compact, bright and comes with an excellent seat rail mount

The media could not be loaded. As a cycling influencer I get a lot of lights for free, but I bought this one based on my past experiences with Olight. I'm glad I did, it's excellent. The seat rail mount snapped right into place and is secure and sleek, the light is bright and has the ideal strobe option (always on, strobing between bright and dim), the charging port faces backwards into the mount which keeps it clean and waterproof (and also has a rubber seal of course), and it's compact and looks good. Love it.

26.05.2025

C**R

Small, simple, effective

So far it has put up with lots of gnarly winter rides. The weather hasn't killed it, nor have my falls. It is easy to charge, easy to fit on the bike and gives a good amount of light. Good product.

13.03.2025

J**E

Visible and good battery life

My little boy has this for his ride too and from school. He charges it every 2 hours (ish) but I reckon it would run all week

29.03.2025

S**A

Bright.

Bright but could do with a rapid flashing mode.

4.05.2025

A**N

This light is compact, lightweight and Very bright

I have 4 rear lights ,two from lezyne and one from moon and now this RN120 . I generally choose to take the olight with me just because of it's compact and lightweight design it will fit race bike seat post as well, it's a Very bright 🌞 light with just enough flashing modes to be useful.The only real minuses is battery life which is a bit short when using the high flashing mode you'll get 2 to 3 hours in that mode. The only other negative is that the light will just shut down there's no low power mode which is a bit annoying , it has a break light function also .I think if Olight updated this light to have a battery 🔋 which would last 4-6 hours and add a low power mode they would crush the competition.

27.08.2021

K**S

Great rear light

Fits nicely on my seat with the bracket, feels light and secure. Looks amazing

23.12.2024

A**R

Lasts a long time on 1 charge

Great light

12.03.2025

R**F

Brilliant

Such a cool light. Fits really well under the saddle (I’m thinking it’s not compatible with any kind of saddle bag) and is really bright. Has plenty of different modes. Looks great and works well; what more could you want?

8.11.2022

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App