Lezyne Strip Pro Ai Alert 400+ Rear Bike Light

Lezyne Strip Pro Ai Alert 400+ Rear Bike Light
15 reviews
55.86

  • Delivery in 3-4 working days
  • Free tracked shipping over 99.00€
  • Trustpilot rating 4.6/5

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

4.8 / 5
Average from 15 reviews
5
12 reviews
4
3 reviews
3
0 reviews
2
0 reviews
1
0 reviews

Photos from customers


Most recent reviews

5 / 5

A great lamp that gives off good light

- Roy 23 September 2026

A great light, easy to fit, and it easily lasted a whole day in both daytime running light and AI mode. It’s great that it has a standard USB-C port, so you can even charge it whilst it’s mounted on the bike if needed. A couple of minor points to note. The rubber mounting is a separate part, so you could lose it if the light isn’t fitted to the bike. It would have been practical if it had been attached to the light on one side.

Pros & Cons

Charges via USB-C
Easy to attach, even to a D-shaped seatpost
Good battery life
The elastic strap is a separate component, so it can come loose
Automatic translation

5 / 5

Highly recommended for long cycle tours

- Jennifer 14 April 2026

Ideal for long bike tours!

Automatic translation

5 / 5

Must have on the road bike

- Holger 16 March 2026

Was looking for a safety-enhancing rear light. This one is perfect.

Automatic translation

4 / 5

Very good rear light with slight aero weakness

- Jonas 9 March 2026

Very good rear light with different modes, very bright - exactly what I was looking for. Not really stable on an aero post (e.g. Aeroad, Madone). Requires an adapter, which must be ordered separately.

Automatic translation

4 / 5

Top lamp easy to attach

- Paul 24 February 2026

On my road bike and gravel bike to be visible to traffic behind me. Older version lost due to worn-out elastic. Too late to replace so.

Pros & Cons

Adjustable light strength
Brake light function
Easy to attach
Not all settings are usable
Over time, the elastic band is the weak point
Pricey
Automatic translation

5

Roy, 23 September 2026

A great lamp that gives off good light

A great light, easy to fit, and it easily lasted a whole day in both daytime running light and AI mode. It’s great that it has a standard USB-C port, so you can even charge it whilst it’s mounted on the bike if needed. A couple of minor points to note. The rubber mounting is a separate part, so you could lose it if the light isn’t fitted to the bike. It would have been practical if it had been attached to the light on one side.

  • Charges via USB-C
  • Easy to attach, even to a D-shaped seatpost
  • Good battery life
  • The elastic strap is a separate component, so it can come loose
Automatic translation

5

Jennifer, 14 April 2026

Highly recommended for long cycle tours

Ideal for long bike tours!

Automatic translation

5

Holger, 16 March 2026

Must have on the road bike

Was looking for a safety-enhancing rear light. This one is perfect.

Automatic translation

4

Jonas, 9 March 2026

Very good rear light with slight aero weakness

Very good rear light with different modes, very bright - exactly what I was looking for. Not really stable on an aero post (e.g. Aeroad, Madone). Requires an adapter, which must be ordered separately.

Automatic translation

4

Paul, 24 February 2026

Top lamp easy to attach

On my road bike and gravel bike to be visible to traffic behind me. Older version lost due to worn-out elastic. Too late to replace so.

  • Adjustable light strength
  • Brake light function
  • Easy to attach
  • Not all settings are usable
  • Over time, the elastic band is the weak point
Automatic translation

Frequently bought together

Frequently bought together


Recommended by the product specialist


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15 reviews 30 reviews 11 reviews
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 40 lumen
USB rechargeable Yes, USB-C Yes, USB-C Yes, USB-C Yes, USB-C
Compatibility None None None Yes, with cycling navigation with Bluetooth/ANT+
Max. Battery Life highest mode 5,5 hours 6 hours 5,5 hours
Max. battery Life lowest mode 80 hours 200 hours 80 hours 25 hours
Flashing Mode Yes Yes Yes Yes
55.86 50.78 45.69 60.94
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All specifications

General

Brand
Lezyne
Compatibility
None
Lateral visibility
Best
Radar feature
No radar function
Camera function
No camera 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
No

All specifications

Brand
Lezyne

General

Compatibility
None
Lateral visibility
Best
Radar feature
No radar function
Camera function
No camera 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
No