Lezyne Strip Pro Ai Alert 400+ Rear Bike Light

Lezyne Strip Pro Ai Alert 400+ Rear Bike Light
7 reviews
50.78

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Pros & Cons

Pros & Cons

  • Premium, highly visible rear bike light combined with advanced AI Alert technology for maximum safety.
  • Optimal light distribution, even in the darkest places, during the day or in the worst, foggy conditions.
  • Up to 400 lumens of light output in Day Flash mode, plus an impressive 80 hour runtime in FEMTO mode.
  • Extensively tested according to the IPX7 waterproofing norms, to guarantee functionality in bad weather conditions.
  • Wide-angle optics for 270° degrees of visibility, and a total of seven regular and flashing modes.
  • Charging cable not included.
Read more on what our customers have to say about this product

Specifications

Specifications

Brand Lezyne
Light Output in Lumen Being seen in limited lighted environment: 100 - 400 lumen
USB rechargeable Yes, USB-C
Compatibility None
Max. Battery Life highest mode 5,5 hours
Max. battery Life lowest mode 80 hours
Flashing Mode Yes
Lateral visibility Best
Brake light feature Yes
All specifications

Reviews

Reviews

4.9 / 5
Average from 7 reviews
5
6 reviews
4
1 review
3
0 reviews
2
0 reviews
1
0 reviews

Photos from customers


Most recent reviews

5 / 5

Good all-round headlight and long battery life

- Pierre 9 May 2025

Perfect for my bike. It's easy to fit and stays in place when you're doing gravel. The warning when braking is a big plus for cars and groups of bikes.

Automatic translation

5 / 5

Expensive but well made with long-lasting battery and great modes and safety braking feature.

- Jan 26 March 2025

If anyone is wondering if the 400 lumen is too strong to annoy others, it is not. I think this is a great light. The brake function works great (it starts blinking very fast when you brake). This is very good safety feature if you ride with others or want to make sure another road user (car/bike) bumps into you when you suddenly slam your brakes. Housing is of good quality. USB-C for charging is great as it takes shorter than with older methods. The light sits well on the seat post thanks to the rubber back. I like its visibility from the side. It's not the 270 degrees it claim, more of 180 degrees, but that's enough.

Pros & Cons

Great disruptive mode for daylight riding
Great modes for both day and night
Lasts long time
Saving mode when you're low on battery

5 / 5

Great buy at a good price

- JFG 5 March 2025

The rear light fully meets my expectations!!!

Pros & Cons

Easy to attach
Gives more safety because of brake light
Gives very good light
No
Automatic translation

5 / 5

Top tail light from Leyzyne. Buy it? Yes.

- Michel 7 February 2025

Nice rear light. Does its job well afternoon and dark thanks to multiple modes. Ai Alert system is top notch. 400+ is more than enough for me, though shrill in the evening.

Pros & Cons

Ai Alert system
Large number of light modes
Shrill, especially in the evening
Automatic translation

5 / 5

Great rear light with blinding output

- Wouter 6 February 2025

Great rear light with blinding output. Not too expensive, easy to mount and lots of options. Only quite big, but that's not really an issue.

Pros & Cons

Easy to mount
Lasts a long time on a charge
Lots (lots!) of light output
Quite large
Automatic translation

5

Pierre, 9 May 2025

Good all-round headlight and long battery life

Perfect for my bike. It's easy to fit and stays in place when you're doing gravel. The warning when braking is a big plus for cars and groups of bikes.

Automatic translation

5

Jan, 26 March 2025

Expensive but well made with long-lasting battery and great modes and safety braking feature.

If anyone is wondering if the 400 lumen is too strong to annoy others, it is not. I think this is a great light. The brake function works great (it starts blinking very fast when you brake). This is very good safety feature if you ride with others or want to make sure another road user (car/bike) bumps into you when you suddenly slam your brakes. Housing is of good quality. USB-C for charging is great as it takes shorter than with older methods. The light sits well on the seat post thanks to the rubber back. I like its visibility from the side. It's not the 270 degrees it claim, more of 180 degrees, but that's enough.

  • Great disruptive mode for daylight riding
  • Great modes for both day and night
  • Lasts long time

5

JFG, 5 March 2025

Great buy at a good price

The rear light fully meets my expectations!!!

  • Easy to attach
  • Gives more safety because of brake light
  • Gives very good light
  • No
Automatic translation

5

Michel, 7 February 2025

Top tail light from Leyzyne. Buy it? Yes.

Nice rear light. Does its job well afternoon and dark thanks to multiple modes. Ai Alert system is top notch. 400+ is more than enough for me, though shrill in the evening.

  • Ai Alert system
  • Large number of light modes
  • Shrill, especially in the evening
Automatic translation

5

Wouter, 6 February 2025

Great rear light with blinding output

Great rear light with blinding output. Not too expensive, easy to mount and lots of options. Only quite big, but that's not really an issue.

  • Easy to mount
  • Lasts a long time on a charge
  • Lots (lots!) of light output
  • Quite large
Automatic translation

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Frequently bought together


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7 reviews 1 review 19 reviews 1 review
Light Output in Lumen Being seen in limited lighted environment: 100 - 400 lumen Being seen in limited lighted environment: 100 - 400 lumen Being seen in limited lighted environment: 100 - 400 lumen 250 lumen
USB rechargeable Yes, USB-C Yes, USB-C Yes, USB-C Yes, USB-C
Compatibility None None None None
Max. Battery Life highest mode 5,5 hours 4.5 to 7 hours 5,5 hours 2 hours
Max. battery Life lowest mode 80 hours 16 to 30 hours 80 hours 21 hours
Flashing Mode Yes Yes Yes Yes
50.78 50.78 48.74 48.74
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All specifications

General

Brand
Lezyne
Compatibility
None
Lateral visibility
Best
Radar feature
No radar function
Mounting location
Seatpost
Colour
Black
Weight
71 grams
Light Type
Detachable light
Mount(s)
Elastic Band / Strap

Power supply

USB rechargeable
Yes, USB-C
Max. Battery Life highest mode
5,5 hours
Max. battery Life lowest mode
80 hours
Power Source
Internal Battery

Properties

Battery indicator
LED

Functions

Flashing Mode
Yes
Brake light feature
Yes
Daytime running lights
Yes
Number of Modes
7
Smart Bike Light
No

Lighting

Light Output in Lumen
Being seen in limited lighted environment: 100 - 400 lumen
Water resistance
IPX7: immersion-proof
Amount of lumen
400

Certifications

StVZO certification
Yes

All specifications

Brand
Lezyne

General

Compatibility
None
Lateral visibility
Best
Radar feature
No radar function
Mounting location
Seatpost
Colour
Black
Weight
71 grams
Light Type
Detachable light
Mount(s)
Elastic Band / Strap

Power supply

USB rechargeable
Yes, USB-C
Max. Battery Life highest mode
5,5 hours
Max. battery Life lowest mode
80 hours
Power Source
Internal Battery

Properties

Battery indicator
LED

Functions

Flashing Mode
Yes
Brake light feature
Yes
Daytime running lights
Yes
Number of Modes
7
Smart Bike Light
No

Lighting

Light Output in Lumen
Being seen in limited lighted environment: 100 - 400 lumen
Water resistance
IPX7: immersion-proof
Amount of lumen
400

Certifications

StVZO certification
Yes