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expiredDrumbic posted May 16, 2026 02:07 PM
expiredDrumbic posted May 16, 2026 02:07 PM

OLIGHT RN 400 LED Bike Lights, 400 Lumens USB Type-C Rechargeable Front Light, IPX7 Waterproof Bicycle Headlight for Road Urban Cyclists Black $18

$18

$30

40% off
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[Attention] Before use, please hold the button for 3 Seconds to unlock the bike light. Otherwise the button will flash red and the light will not turn on due to the built-in locking function
[Rechargeable Bikelight] Olight RN 400 is a bike headlight with a max output of 400 lumens and equipped with a fast-charging USB-C port, supports large current charging, effectively reduced charging time
[Secure Anti-glare Lens] The "anti-glare" design of RN 400 moves the light beam downward, to avoid blinding the oncoming motorists or pedestrians, increasing night riding safety on road
[IPX7 Waterproof] IPX7 waterproof rate makes the bike light capable to withstand water immersion up to 1m depth, which renders the riding safer even if it rains and reduces the interference of rainy days on cycling to a large extent
[Easy to Read Battery Indicator] At standby mode, short press the power button will automatically display the power status of the RN 400 for three seconds. Green: 21%-100%; Red: 11%-20%; Red in Flash: 1%-10%
[Multi-functional Headlight] Designed with a mount, RN 400 can be tightly installed on the helmet, handlebar, or under the camera. All in one design bike headlight is suitable for urban riding and daily commuting

https://www.amazon.com/dp/B08MTWKV4G
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Community Notes
About the Poster
[Attention] Before use, please hold the button for 3 Seconds to unlock the bike light. Otherwise the button will flash red and the light will not turn on due to the built-in locking function
[Rechargeable Bikelight] Olight RN 400 is a bike headlight with a max output of 400 lumens and equipped with a fast-charging USB-C port, supports large current charging, effectively reduced charging time
[Secure Anti-glare Lens] The "anti-glare" design of RN 400 moves the light beam downward, to avoid blinding the oncoming motorists or pedestrians, increasing night riding safety on road
[IPX7 Waterproof] IPX7 waterproof rate makes the bike light capable to withstand water immersion up to 1m depth, which renders the riding safer even if it rains and reduces the interference of rainy days on cycling to a large extent
[Easy to Read Battery Indicator] At standby mode, short press the power button will automatically display the power status of the RN 400 for three seconds. Green: 21%-100%; Red: 11%-20%; Red in Flash: 1%-10%
[Multi-functional Headlight] Designed with a mount, RN 400 can be tightly installed on the helmet, handlebar, or under the camera. All in one design bike headlight is suitable for urban riding and daily commuting

https://www.amazon.com/dp/B08MTWKV4G

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Model: OLIGHT RN 400 LED Bike Lights, 400 Lumens USB Type-C Rechargeable Front Light, IPX7 Waterproof Bicycle Headlight for Road Urban Cyclists Black

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Sort: Lowest to Highest | Last Updated 6/18/2026, 02:21 AM
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May 17, 2026 03:46 PM
482 Posts
Joined Feb 2019
Anthony2016May 17, 2026 03:46 PM
482 Posts
These are fantastic and olight has great customer service. One ~3 years after purchase and they still replaced no questions asked. Small enough to be a blinks but bright enough for most commuting. You could fit 2 on the bars with room, or put one on your helmet they are that small.
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