Sigma Buster 400 19630 USB Bike Front Light

The Sigma Buster 400 is a battery-powered front bike light listed with a maximum output of 400 lumens and five settings. Its claimed quick attachment and removal may suit cyclists who move the light between bikes or take it with them after a ride.

At a glance

The listing describes five light modes and a memory function that recalls the selected mode.
A six-level battery indicator is stated to show remaining battery life.
The manufacturer says the light attaches and detaches from the bike easily.
The product description claims a beam distance of 120 meters.

Price

€37.99Save 11%

Reference price: ~~€42.78~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Five listed light settings give riders options for different conditions.
The stated mode-memory function and battery indicator help with routine light selection and charge awareness.
The manufacturer describes attachment and removal as easy, which may help when taking the light off the bike.

Technical specifications

10 specifications

Identity
Brand	Sigma
Model	19630

Light and power
Maximum light output	400 Lumens
Number of settings	5
Power configuration	Battery Powered

Installation and weight
Mounting type listed	Lenkermontage
Weight listed	226 Grams

Materials and protection
Water resistance listed	Waterproof
Material listed	Unisex Adults compound
International Protection Rating	IPX4

What to know before buying

Listing details to confirm

The product description calls this a Buster 400 and claims a 120-meter beam, while the title names a Buster 400 TR.RL 80 LED USB Headlamp Kit. The details also call it waterproof but list IPX4, so confirm the exact light version and protection claim for the selected listing. The technical details say handlebar mounting, while the title says headlamp kit. The supplied contents list names a headlight and manual only, so check whether a USB cable or any mounting hardware is included.

What’s in the box

Included

Headlight
Manual

Who is it for?

A good fit for

Cyclists looking for a battery-powered front light with five listed settings.
Recreational, commuting and touring cyclists, as named in the listing.
Riders who value a stated battery indicator and mode memory.

Less suited to

Buyers who need confirmed bundle contents, including a USB cable or specific mounting hardware.
Buyers who require an unambiguous water-protection rating or confirmed headlamp configuration.

Sigma Buster 400 19630 USB Bike Front Light · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 77 ratings

5 stars66%66%
4 stars15%15%
3 stars8%8%
2 stars4%4%
1 star7%7%

Aggregate customer ratings lean positive overall, with most ratings in the five-star category, but a smaller spread of lower ratings shows experiences are not uniformly positive. The supplied feedback contains no written review details, so it does not establish what customers liked or disliked. Ratings alone cannot confirm the claimed brightness, mounting fit or battery features.

Frequently asked questions

How bright is the Sigma Buster 400 listed to be?

The listing gives a maximum output of 400 lumens. Its product description also claims a 120-meter beam, but confirm that detail applies to the exact version offered.

What power source and settings are listed?

The technical details say battery powered and list five settings. The product description also mentions mode memory and a six-level battery indicator.

What comes in the box?

The explicit contents list names a headlight and manual. It does not confirm a USB cable or mounting hardware, so check the selected listing.

Is the light waterproof?

The details describe it as waterproof and separately list IPX4. Because those claims are not fully aligned, confirm the protection level required for your use.