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

One of my favourite brands. The back light with 6 steps lighting modes. The light brightens in sudden braking - inertial sensor built-in. Precisely manufactured in every detail.

A good light, easy to install with a good output.

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.

Light is bright. But the instructions to operate the light are a bit poor. Had to ‘guess’ how it worked and how to turn off and on smart mode by watching YouTube videos on it. Bought while on offer, but wouldn’t have paid full price

great lights, also adjustable.

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.

The light itself is good. Good functionality, and reasonably robust. Battery life though. Well that's just shocking. Shame on you Olight. I love your stuff. I'm a big fan. But this is essentially unusable if you want to cycle for more that an hour. I don't know if I've got a dodgy unit or what. But I normally do an hour's ride before work, and I have it on a medium blinking mode. By the time I get home. It's on emergency mode. Very slow blink, and not much brightness. My Lezyne will easily last a week before I need to charge it. Seriously, add 50 grams and give us a better battery. Do better Olight.

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.