Olight RN 400 Bike LED Light Headlight

Ratings only

Lights are nice, not all models have usb-c plug so check that out if you dont want to carry multiple plugs. Also, handle bar mount is terrible, really really terrible. A slight bump on the lamp will make it come loose from the base, then there is nothing to stop it from falling down. The strap and screw system is just bad design, too.

I buy 4 of them for my 2 nephews for chistmas, that is 2 each since they lives in country and needs some more light than urban riding. Also this duplication add some redundancy and, since they are young boys, this configuration's fixations are stronger and gives a wider and uniform beam since theses are lightweight and uses the same brakets than the RN1500 I uses but that is 3 times heavier. I Try them both and the beam is more white and focussed than the RN1500 and 800lm(2x400lm) is enought. Single configuration is good for urban riding where other light source is present. I would like a more precise battery level indication than Red(<20%)/FrashRed(<10%) may be some pules width between Green/Red proportional to battery level.

Emit a white focussed beam powerfull enought for urban uses. I Uses 2 x RN400 to gets 800lm with a wider beam and gives some redundancy for safety. Very strong braket since LightWeight.

Favorable comment

Haven't put it through rain yet, but it's a bright and reliable light for night rides and to bee seen during the day.

I previously bought the RN 1500 and love it so much, I decided to buy the RN400 for daytime flash use. Yes, I know, I could just use the RN1500 in flash mode but I'd prefer to save that for exclusive night time use to keep the battery fresh and ready. The RN400 is like a mini version of the RN1500. Same build quality, same materials, same great light!!! It's a small light so it's discrete on your handle bar during the day. I'm forever sold on garmin mounted lights like most of Olight's lights. The constant light modes are a bit dim for night use, maybe the 400lumen mode on lit urban streets, but definitely too dim for off road trail use. It could be good as an emergency back up light though. The flash modes are the same as the RN1500, slow flash (Flash 1) and more of a strobe flash (Flash 2). Like I said, I only intend to use this during the day on flash mode and the run times are good enough for that purpose. Looking to get another RN1500 for longer rides. I love these lights!!!!