The Best Bike Lights

This is the rare light that suits a dark trail and a lit commute. NiteRider rates it at 1200 lumens in boost, which you trigger with a double tap. The collimator lens spreads that light wide instead of punching a narrow hole down the road, so you can see the curb and the pothole at the same time. Nine modes let you dial it back when you don't need all of it.

The OLED screen sounds like a gimmick until you're 20 minutes from home in the dark. It shows the mode, the battery level and the runtime you have left in minutes, rather than a green dot that turns red at some unknown point. You stop rationing brightness out of anxiety. That one change makes the light easier to actually use.

Output claims in this category are mostly marketing. NiteRider says this light is FL1 tested, the standard that requires measured lumens and runtime instead of a number pulled off the LED's datasheet. Blackburn cites the same ANSI standard. It's a small thing, but it means the 1200 figure and the roughly 90 minute boost runtime came from a measurement rather than a hope.

Use the flash modes in daylight, because that's where a lot of riders get hit. FHWA research on bicycle safety finds that daytime running lights improve how well drivers see cyclists, and IIHS work on vulnerable road users finds that drivers detect flashing lights faster than steady ones. Daytime modes are part of the nine, and NiteRider rates the lowest flash setting past 40 hours. Leave it running on the morning commute.

Flaws but not dealbreakers

The IP64 rating is the weak spot. That's dust tight and splash resistant, which covers rain on the road. It isn't the same as the IP67 seal on the Cygolite or the IPX7 on the Lezyne set, which under the IEC standard are certified for full submersion in a meter of water for 30 minutes. If you ride through standing water or hose your bike off in the driveway, that gap matters.

The listing calls the charging USB rechargeable with a fast IntelliCharge system, but it never says USB-C. If you've standardized your bag on one cable, check the port before you commit. It's also one of the chunkier lights here at about four and a half inches long, and boost mode empties it in roughly an hour and a half.

IP67 is the number to look at. Under the IEC standard, that means the light survives full submersion in a meter of water for half an hour, not just a passing splash. Plenty of budget lights stop at IPX4, which only promises to shrug off spray from any direction. If you ride winters in the Pacific Northwest, or you lock the bike outside all day at work, that's the difference between a light that lasts and one that fogs.

The side cutouts are the underrated part. Cycling Weekly's side visibility check found the Metro's side lenses visible from a 90 degree angle at roughly 50 meters in low light, better than lights with no dedicated side lens. That's the angle that matters at intersections. A driver rolling out of a side street sees you from the side or doesn't see you at all.

Road.cc's runtime check on the 1100 lumen Metro came in around two hours on boost, close to what Cygolite claims. That's honest for this class. Nine modes include SteadyPulse, which pulses to catch a driver's eye while a steady beam underneath keeps lighting the road, and DayLightning, a hard strobe meant to stand out in bright sun.

It weighs 150 grams and clamps on with a hard mount instead of a rubber strap, so it doesn't creep or wobble when you hit a seam in the pavement. The trade is that hard mounts are fussier about odd bar shapes. There's a low battery indicator too, and a transport lock so the light doesn't run itself flat in your bag.

Flaws but not dealbreakers

Out of the box the light flashes rapidly and won't switch on normally, because it ships in lock mode. Cygolite puts the fix in its first listing bullet: hold the power button for six seconds. It's still an easy thing to mistake for a defect, and it's a strange first impression for a light this good.

On paper it's 200 lumens shy of our top pick, and there's no display to tell you what's left in the battery. The listing promises fast USB recharging without saying USB-C, so check the port if that matters to you.

It's a complete front and rear set, and the whole thing weighs 77 grams. The headlight runs 300 lumens at 48 grams, and the tail light adds 260 degrees of visibility at 29 grams. Quarter turn mounts snap on in seconds with no tools. If your commute is lit streets and your real worry is being seen, this covers both ends of the bike at once.

The front beam has a cut off, like a car's low beam. It throws light on the pavement instead of into the eyes of the person riding toward you, which is the decent thing to do on a crowded path. The tail light has a brake sensor, so it burns full brightness the moment you scrub speed. Drivers behind you get roughly the cue they'd get from a car.

Runtime is the surprise. Magicshine rates the tail light at up to 82 hours in eco flash and the front at up to 14.5 hours in flash, from a 900 mAh and a 600 mAh cell. USB-C fills the front in about two hours and the rear in about 90 minutes, and both have a battery indicator. For a normal week of commuting, you charge on Sunday and forget them.

Flaws but not dealbreakers

300 lumens is a be seen light, not a see with light. On an unlit path or a country road you'd be riding faster than you can see, which is how people find potholes the hard way. Keep this set for streets with working streetlights, and buy something in the four figure lumen range if any part of your route goes properly dark.

IPX6 handles heavy rain and road spray, not submersion, so it's a step below the Cygolite and the Lezyne set on sealing. Tiny lights are also easy to leave on a rack or lose in a bag, though the one button lockout at least keeps them from draining in there.

The beam is the whole reason to buy it. Cycling Weekly's beam pattern testing rated the Blinder 1300 among the top performers for even flood coverage, with less of the dark fringe that narrower throw lights leave at the edges. On the road that means the world doesn't fall off a cliff just outside your beam. Knog quotes useful light up to 393 feet ahead of you.

It charges over USB-C, which is now the standard worth insisting on. OutdoorGearLab's charging comparisons found USB-C lights in this lumen class refilled from empty roughly 30 to 40 percent faster than comparable micro-USB models. That's the difference between topping up over a lunch break and not quite getting there. Six preset modes keep the button presses simple.

Runtime lands where 1300 lumens says it should: two hours at full brightness, and up to 120 hours on eco flash. The mount holds it over or under the bar, which helps if your cockpit is already crowded with a computer and a bell. Under the bar also keeps the light out of your sightline, and it looks less like a floodlight bolted to your bike.

Flaws but not dealbreakers

Knog doesn't publish a water resistance rating in this listing, which is an odd omission for a light this ambitious. Cygolite and Blackburn both state IP67. If you ride in real weather, an unknown seal is worth weighing against a certified one.

Two hours at full output is short, and there's no external battery option listed to stretch it. Owner feedback is thin so far compared with the long running Cygolite and NiteRider models, so there's less of a track record on how the mount and the seals hold up after a couple of winters.

Radar changes what you know about the road behind you. The RCT715 watches for vehicles closing from behind and pushes an alert to an Edge computer, a compatible Garmin watch, or the Varia app on your phone. Garmin rates detection at 140 meters. DC Rainmaker's testing reported vehicles picked up as far out as 240 meters, which at typical road speeds works out to roughly 8 to 10 seconds of warning.

That warning is worth the most on the roads that scare you. Two lane highways with no shoulder, where a car appears without a sound until it's already on you. You ride the same line you always did. You just stop guessing, and you stop swiveling your head every 15 seconds. If your routes have real bike lanes, you'll get less out of it.

The camera is what separates this from the plainer Varia units. It records 1080p at 30 fps, or 720p if you want the battery to stretch over a longer ride, and it saves the footage from before, during and after an incident automatically. Three modes let you run it always on, lights and radar only, or camera on radar trigger. If you've ever been buzzed and had nothing to show for it, that's the appeal.

Flaws but not dealbreakers

It's a tail light only, so you still need a headlight, and it's the most expensive item in this guide on its own. Plan on two purchases rather than one.

Running the camera eats battery, which is exactly why Garmin builds in modes that keep it asleep until the radar wakes it. The unit is also bulky for a tail light and mounts to the seatpost, so an aero post or a saddlebag will fight it for room. Radar can't see a car that's already alongside you either, so it adds to shoulder checks rather than replacing them.