Why lumens-only lights fail: brightness shows you exist, not what you're doing — a blink reads the same whether you're cruising or braking. A signal the driver already understands is what tells them which one you are.
THE TEST WINNER — 9.8/10
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Best road beam in the test, 1,700 lm
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AKTiv auto-dim for oncoming cars
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OLED battery and mode readout
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No brake signal, auto-on or alarm
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No app · about $450, front light only
Great beam. It still can't tell the driver behind you that you're braking. Cliq can. → See how Farina scored 9.8
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800 lm on high, solid mount
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Up to 16 hours on low
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Pairs with a head unit
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No cut-off — beam in oncoming eyes
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No brake signal, auto-on or alarm
A dependable torch with no smart sensors — around $180 to say "cyclist here" and nothing else. → Back to the test winner
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Wide, even 2,200 lm trail beam
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Robust self-contained body
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USB-C pass-through charging
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No cut-off — dazzles on the road
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No brake signal, auto-on or alarm
A brilliant trail flood that's never met a car. → See the light built for the road
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3,000 lm, 10,000mAh power bank
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USB-C fast charge, great value
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No brake signal, cut-off or alarm
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Big and heavy for a road bike
Three thousand lumens, and the driver still can't tell you're stopping. → Compare it to Farina
How do we choose the best?
This year we changed the test. Most reviews score a light on lumens — which is how a 3,000-lumen flood can earn a 9 while the rider under it still gets “seen at the last second”. So we score differently now. Being read by traffic is decided by five things working together: a brake signal, a shaped beam, auto-on, a sealed body with a real battery, and a light that stays on the bike. A complete system has to do all five.
Brake signal. Every car since 1986 carries a third brake light; NHTSA measured a 4.3% long-term drop in rear-end crashes from that one lamp (Kahane & Hertz, 1998). We scored whether the taillight tells the driver behind you that you're slowing — or just blinks.
Beam shape. A beam in a driver's eyes makes you harder to see. We favoured lights built to StVZO §67 — a hard cut-off that lights the road and nothing above the horizon — over raw lumens.
Auto-on. The one peer-reviewed trial of an always-on bicycle light (Aalborg 2013, replicated in 2025 with 5,380 riders) found 71% fewer night-time multi-party accidents. We tested whether the light comes on by itself when the light drops — and off when you stop.
Sealed & sustained. IP67 (IEC 60529) is a definition; "water resistant" is a word. We favoured a published ingress rating and bench-checked runtime over the number on the box.
Stays on the bike. A light in your pocket isn't on your bike. We looked for a motion-sensor alarm that lets you leave both lights mounted while you get the coffee.
Value for money. Price alone doesn't win. We weighed what you'd pay for a premium beam, a radar taillight and a separate alarm against one pair that already does all of it.
"Super easy to set up and very customizable with the app. I especially like the auto brake system — it flashes a solid light to let people behind you know you're slowing down or stopping."
— Sean Trotter, verified buyer*
"I charge this light maybe twice a week with frequent cycling. It's amazing. All the other lights I've owned required that I charge them every day."
— Rob, 42 · New South Wales*
"I love this light, especially how waterproof it is. I frequently ride in the rain and it's never had any issues."
— Gary, 42 · London*
Questions to ask before buying a bike light
1. Does 1,100 lumens really matter if the beam is shaped?
Yes — more than a bigger number does. A cut-off puts the light on the road instead of the sky, so 1,100 shaped lumens reads further down the tarmac than a 3,000-lumen flood, and the driver coming at you keeps their night vision.
2. Will the anti-theft alarm go off when a bus passes?
No. It arms when you toggle it in the app and triggers on the bike moving, not on noise or vibration. Leave the lights on the bike and your phone tells you if it moves without you.
3. Can I run Farina and Cliq on more than one bike?
Yes. A mount stays on each bike and the lights swap across in seconds; the app keeps your modes, brightness and alarm settings.
4. How long does the battery last on a real commute?
Up to 20 hours from the LG 21700 cell, with the ambient sensor dropping output in daylight to stretch it. Three hours on USB-C refills it. Charge indoors in winter — lithium-ion won't take a charge below 0°C.
5. Are premium bike lights worth it?
If you just want to be lit, a basic blinker is fine. If you want to be read — by the driver behind you and the one coming at you — the brake signal and the cut-off earn their keep.
Still reading? The test's over — it wasn't close.
Get Farina — free Cliq with the first 500 →Limited · free Cliq while the first 500 last
