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Planet Bike Grateful Red bike tail light

4.7 4.7 out of 5 stars 888 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Bike Taillights by Planet Bike

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About this item

  • Bike light for rear of bike and reflector all in one with three separate light modes: runs for up to 150 hours on super flash mode, 45 hours on courtesy mode, and up to 26 hours on steady
  • Battery powered bike light: runs on two AAA batteries
  • Bike ready: great light for providing more awareness to other riders and drivers when on your bicycle
  • Water resistant: rugged outer shell provides water resistance
  • Multiple mounting options: includes seat post and seat stay mounts and clip Mount for multiple mounting options

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From the manufacturer

Planet Bike bicycle accessories, bike tail lights, bicycle rear light
Planet Bike bicycle accessories, bike tail lights, bicycle rear light
Planet Bike bicycle accessories, bike tail lights, bicycle rear light
Planet Bike bicycle accessories, bike tail lights, bicycle rear light
Planet Bike bicycle accessories, bike tail lights, bicycle rear light

Product Description

The Planet Bike Grateful red rear red tail light is dazzlingly bright with three distinct modes for safety options for both day and night bicycling. The Grateful Red’s PB power array is formed by 28 LED microchips. Includes mounts for both seat post or rear rack. This light is ideal for helping you be noticed on your electric bicycle!

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Planet Bike Grateful Red bike tail light


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Customer reviews

4.7 out of 5 stars
4.7 out of 5
888 global ratings

Customers say

Customers like the brightness, ease of installation, performance, battery life, and fit of the bicycle light. For example, they mention that it's really bright, easy to mount, and works well for its intended purpose. That said, some appreciate the standard AA batteries that seem to last forever. That's not to mention that the light fits perfectly on their bike rack.

AI-generated from the text of customer reviews

190 customers mention179 positive11 negative

Customers are satisfied with the brightness of the bicycle light. They mention that it is really bright and would get anybody's attention. They appreciate the courtesy option that glows and dims and does not blind drivers. The light comes out of the bracket if you need it to and won't if they don't want it to. It is a great light to mount on a rear bike rack and is visible at night. Customers also say that Planet Bike lights are the best cycling lights made.

"...I found the light to be much brighter than the original light my bike came with so at that point, I did not care about the size anymore...." Read more

"...This is a much better flashlight than I was expecting, though I would only run it as a weapon light as a last resort... I haven't tested it with..." Read more

"Great light to mount on rear bike rack. Fit my Bontreger rack perfectly with two bolts that were supplied. This light was simple to install...." Read more

"...Anyway, this light is about perfect - the switch has an actual button, it has steady (very bright) and two flashing modes - one that I'd call "crazy..." Read more

77 customers mention70 positive7 negative

Customers find the installation of the bicycle light to be easy. They mention that it's easy to mount, use, and adaptable to different mounting positions. The quality of the light is great, and it takes good ol' no-muss AA alkaline batteries. The installation with the provided screws was very easy, and the light works really well. Customers also say that it is simple, basic, and an excellent value. They say it mounts right up without problems, and is easy to find and push the button.

"...is a big soft blue button on the back side of the light that is very easy to find...." Read more

"...This light was simple to install. If you have a bike rack this will work. The spacing of the bolts is standard to all current bike racks...." Read more

"...The Grateful Red is simple, basic, meets my mounting needs, and is, for better or worse, very bright...." Read more

"...Courtesy is much slower, with both a slow On and slow Off pulse. Very casual compared to the frenetic flashing of Superflash...." Read more

70 customers mention61 positive9 negative

Customers like the performance of the bicycle light. They mention it works well, is bright, and is serviceable for its intended purpose. Some say that the light is perfect and high quality. They also appreciate the useful features, and find it easy to operate. Overall, customers are happy with their purchase and recommend it to others.

"...I’ve biked about 30 miles with it on so far and it has worked perfectly. Bright enough to work in daylight...." Read more

"...It even comes with batteries installed. Nice product." Read more

"This is a nice bit of kit, a good value for the money. It's a reflector, tail light, and tail light flasher, all in one...." Read more

"Struggled to find a good tail light for my rack mount. This one is perfect and high quality. Buying one more for my other bike today." Read more

47 customers mention41 positive6 negative

Customers like the battery life of the bicycle light. They mention that it takes standard AA batteries that seem to last forever. Some say that the batteries were included, but not fresh. Overall, most are satisfied with the battery performance of the product.

"...The light came with two AAA batteries already in and ready to go...." Read more

"...installed and removed with one hand. The Uelfbaby comes with a rechargeable taillight which is actually pretty cool but I'm using it as a..." Read more

"...It also incorporates a reflector. Most importantly, it takes AAA batteries, so you can buy rechargables and a recharger and spend next to nothing..." Read more

"...Batteries were included, but were not fresh and only lasted a couple months. We'll see how this light lasts with fresh Procells in it now...." Read more

45 customers mention39 positive6 negative

Customers like the quality of the bicycle light. They say it's well built, sturdy, and long-lasting. The stainless hardware is bright and long lasting. The light has held up well to the cold, wet, and snowy New England weather. It comes standard with a sturdy clip.

"...Overall, it seems like a good sturdy light. I often ride on bumpy roads so I would like to see how well it holds up in the long run." Read more

"...HEADLIGHT: The Uelfbaby 1000 lumen rechargeable flashlight is a very robust and clever design with the USB charging port sealed behind a rubber o-..." Read more

"...It’s all plastic, but seems durable. I’ve biked about 30 miles with it on so far and it has worked perfectly. Bright enough to work in daylight...." Read more

"...This light does.The belt clip is one solid plastic piece that slides onto the back of the light and can be replaced with the seat post..." Read more

44 customers mention41 positive3 negative

Customers are satisfied with the fit of the bicycle light. They mention that it fits perfectly on their bike rack, and around a wide post. It is also compact and light-weight, making it easy to carry in their pocket. Some say that the light is larger than their old light, making them more visible. Overall, customers are happy with the quality and performance of this product.

"...put a Grateful Red on the back of my rack, it's the perfect size and brightness, and can also be installed and removed with one hand...." Read more

"Great light to mount on rear bike rack. Fit my Bontreger rack perfectly with two bolts that were supplied. This light was simple to install...." Read more

"...One is for typical bike pole. Other is a PERFECT FIT for popular Topeak bike carrier which I have...." Read more

"...It is very large and bright, brighter than others in my cycling club have. It has 3 settings: on, slow flash, and strobe...." Read more

40 customers mention33 positive7 negative

Customers like the speed of the bicycle light. They mention that it has two flashing rates, a fast flashing option, and a courtesy flash mode. The light is bright and has three flashing modes, steady, flash, and pulse. The fast flash option provides good visibility at night. The bright flashing strobe mode makes it amazingly visible.

"...The light has three setting: constant on to rapid blinking...." Read more

"...the switch has an actual button, it has steady (very bright) and two flashing modes - one that I'd call "crazy obnoxious seizure-inducing," and the..." Read more

"...It's as bright as you could possibly need. Flashing mode sips juice from the batteries...." Read more

"...being a reflector, it has a steady tail light function and two flashing rates- Superflash and Courtesy...." Read more

39 customers mention39 positive0 negative

Customers are satisfied with the mounting options provided with the bicycle light. They mention that it comes with good mounting options, including a mount for the seat post and bike rack. Some appreciate the fact that it mounts to common points.

"...Mounting:It came with a rear rack mount as well as a seat post mount...." Read more

"...to use as a deterrent against humans or dogs. It comes with a really slick mount, which looks like plastic but it's actually very dense rubber..." Read more

"...And it comes with a rack mount. It also incorporates a reflector...." Read more

"...The Grateful Red is simple, basic, meets my mounting needs, and is, for better or worse, very bright...." Read more

bright and batteries last forever
4 Stars
bright and batteries last forever
I've used this light on my nightly rides for a couple years now. It's as bright as you could possibly need. Flashing mode sips juice from the batteries. I use lithium rechargeable AAA batteries and have only had to recharge them a couple of times over the course of 2+ years. I prefer AAA powered bike lights because rechargeable light systems only reveal they need to be recharged when you're about to depart on a ride or while you're riding. In both scenarios, you're without a light when you need one. With a AAA-based light, you just insert another pair of batteries and you're ready to go.This Planet Bike light would get 5 stars from me except for a slight design flaw. Notice the picture here only features the back half of the unit. The rest of this unit (lens, circuit board, reflector shield, and batteries) released themselves on their own recognizance last night when I rode over some railroad tracks, I believe. I circled back later and couldn't find any of the debris trail. Anyway, if you look at this picture, you'll see that the on/off button is on the back of the case such that pressing on it exerts forward pressure towards the lens. I suspect that when I pressed this button holding the sides of the light, instead of the front of the lens, that pressure pushed the lens loose from the case. When I later hit a bump it all shook loose. This could be remedied with a rubber band around the whole thing, but that sure isn't very elegant.
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Top reviews from the United States

Reviewed in the United States on April 23, 2022
Customer image
5.0 out of 5 stars Great visibility
Reviewed in the United States on April 23, 2022
First impression out of the box:
I found them to be a little small as they were almost half the size as the original light my bike came with.
The light came with two AAA batteries already in and ready to go.
There is a big soft blue button on the back side of the light that is very easy to find.
I found the light to be much brighter than the original light my bike came with so at that point, I did not care about the size anymore.

Mounting:
It came with a rear rack mount as well as a seat post mount. Installation to the rear rack mount was very simple and took about 5 minutes. Although I didn’t need the instructions, the images are very straightforward.

3 settings:
Steady, “Superflash,” and Courtesy.
-Steady is just the light at 13 lumens without any effects.
-Superflash is a flashing or strobing light at 13 lumens.
-Courtesy is a pulsing light that goes from 4 to 11 lumens.

For people who ride with daytime lights, I can’t say the light is really noticeable in the daytime but it works as a reflector. It may be more noticeable on cloudy days or maybe early in the morning or evening.

*This light DOES NOT turn off automatically after a minute of being stationary so you do have to manually press the button on the rear to turn it off and on.

Waterproofing:
The light is rated at IPX3 (protected against water spraying at a 60 degree angle) and has a rubber or silicone gasket so although not completely waterproof, it should be fine in the rain. I personally live where it doesn’t rain very often so I’m not too worried about it.

Overall, it seems like a good sturdy light. I often ride on bumpy roads so I would like to see how well it holds up in the long run.
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3 people found this helpful
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Reviewed in the United States on May 29, 2018
4 people found this helpful
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Reviewed in the United States on November 20, 2021
Customer image
5.0 out of 5 stars Bike Rack Mount Rear Light
Reviewed in the United States on November 20, 2021
Great light to mount on rear bike rack. Fit my Bontreger rack perfectly with two bolts that were supplied. This light was simple to install. If you have a bike rack this will work. The spacing of the bolts is standard to all current bike racks. The light has three setting: constant on to rapid blinking. Has a blue button in back (see pic) that allows you to turn off and on or adjust the light settings. The light will come off the bracket if you wish to remove. It’s all plastic, but seems durable. I’ve biked about 30 miles with it on so far and it has worked perfectly. Bright enough to work in daylight. Add a bit of safety comfort knowing cars should see it.
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5 people found this helpful
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Reviewed in the United States on October 30, 2020
One person found this helpful
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Reviewed in the United States on February 15, 2024

Top reviews from other countries

Fuji touring
5.0 out of 5 stars Small but bright
Reviewed in Canada on April 21, 2023
Customer image
Fuji touring
5.0 out of 5 stars Small but bright
Reviewed in Canada on April 21, 2023
Super bright battery operated rear back light. It comes with everything including the two types of attachments and the batteries. I attached it to my rear rack (fuji touring) and it fits perfectly! It's small but bright and it has built in reflectors which is good for road safety in general. I think its also the law in some provinces to have reflectors so thats a plus!

There are three modes of lighting (solid, fast blinking,slow blink). I mostly use the slow blinking as the fast blinking is too much!

The only down side is I can't screw it on to the bike rack which is good if you never leave your bike unattended. I suppose it makes it easier when you replace the batteries but I'd prefer not needing to think about it when I park.
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Joshua
5.0 out of 5 stars Super Bright!
Reviewed in Australia on June 4, 2023
Md Rizal Erman
4.0 out of 5 stars Looks good
Reviewed in Singapore on November 9, 2021
Customer image
Md Rizal Erman
4.0 out of 5 stars Looks good
Reviewed in Singapore on November 9, 2021
Has 3 modes, bright, flashing and low, in that order. Batteries were included. Seems waterproof enough. I wish that the rack bracket was a bit stiffer (currently a little too flexible for my liking). I also wish that the cover is screw fitted instead of snap fit.
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Frank Conway
5.0 out of 5 stars This light will get you noticed!
Reviewed in Canada on November 16, 2020
D Mac
5.0 out of 5 stars Beautiful Light
Reviewed in Canada on September 15, 2021