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Proviz LED360 Sirius Front Bike Light



Good beam pattern and battery life, but minimal rain protection
Flattened beam could be seen as sociable
Decent burn-times
Covered charge point
Very plasticky feeling
IPX4 rating
Light can rattle in the mount

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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The Proviz LED360 Sirius throws out a claimed 600 lumens by way of a decent beam pattern, backed up by better-than-average battery life. The benefits end there, though, as this is one of the cheapest feeling lights I have ever held, it has the minimum amount of weather resistance you need for the UK conditions, and the bracket isn't the most stable. Check out our guide to the best bike lights for more options.

A couple of months back Dave reviewed the Proviz LED360 Rigel bike light and was very impressed – 9/10 impressed in fact. Unfortunately those good vibes don't spread across the entire light range.

Priced at £49.99 (currently reduced to £34.99), the Sirius isn't a cheap light, but if feels it. It's made from a combination of aluminium and thermoplastics, and feels very, very plasticky. It's huge as well.

2022 Proviz LED360 Sirius Front Bike Light - side.jpg

That's a shame really, as performance-wise things aren't too bad.

Modes & run-times

It has a claimed max output of 600 lumens from the single CREE XD 16 LED on its highest mode, which the 2,600mAh battery will support for two hours – a burn-time that I found to be realistic.

There are two other solid modes – medium (2.5hrs) and low (3.5hrs), which I'm guessing are around 300 lumens and 150 lumens, going by the highest setting. And then you get two flashing modes, fast flash and low flash, which give 7 hours and 14 hours of battery life.

The modes are scrolled through by a click of the power button, and yes, you do have to go through the flashing modes to get back to the highest solid mode. A pain, but not uncommon on lights at this price point.

2022 Proviz LED360 Sirius Front Bike Light - top.jpg

Battery life is shown by way of four LEDs on top of the light, with all four showing green when fully charged, which is achievable within about 3.5 hours from flat.

The green LEDs go out as the power drops, with the final one turning red when the battery is on its last legs. It's a bit primitive, but if you are heading out with a fully charged light you can keep an eye on your ride time.

Beam & brightness

The beam pattern is quite pleasing, with a central spot from the LED itself, while the reflector is curved from top to bottom which gives a low and wide flood. It's not claimed to be StVZO compliant or anything, but it could be considered sociable to oncoming eyes.

2022 Proviz LED360 Sirius Front Bike Light - front.jpg

The brightness is pretty good – on both of the two higher modes I'd say I could ride comfortably on the back lanes, although I couldn't take the descents as fast as I normally would.

> Check out our beam comparison engine to help you choose the best front bike light

So, as a light source it works pretty well, and it's quite hardy too. I did have a bit of an off with it fitted to my gravel bike and the Proviz took the brunt of the impact against the compacted gravel trail with just a small scuff to show for its efforts.

Protection against the elements is poor, though, with just an IPX4 rating, which means it's resistant to water splashes from any direction. The USB port is covered, which helps, and it's underneath the light so protected from the worst of the weather, but giving the Proviz a blast from the bathroom shower to replicate heavy rain saw it turn off quite quickly, and then it needed to be dried on the radiator for a few hours before it would work again. I'd expect to see at least IPX6 at this price.


The mount is simple, as in it uses a quick release fastener to clamp it to the handlebar, and it's designed to work on a range of diameters.

The light slides into position before locking in place, and there is a small amount of side to side adjustment to cope with bars that flare back towards you.

It can be tightened, but it still allowed a bit of play, which meant that the Sirius rattled on any surface that wasn't smooth – so about 90 per cent of the time then.


At £50, there is a lot of competition, and the Proviz doesn't stand up that well in comparison.

Shaun tested the Ravemen CR600 back in 2021, and while it is a fiver more, it is constructed from aluminium, comes with a T-shaped beam that limits upwards glare, and you also get a remote for it.

Burn-times are shorter for the 600-lumen high mode at 1.4hrs, while the 300 and 150 lumens give 2.4hrs and 4.5hrs respectively. It has a IPX6 rating, though.

The Oxford Ultratorch Headlight CL500, tested by Steve in January, has, as you've probably guessed by the name, a max output of 500 lumens, and it comes with a full aluminium alloy body. Like the Proviz, it's only rated to IPX4, and has a run-time of just under two hours on full, but it costs just £37.99.


Overall, I think the Proviz is overpriced for what it is. Its actual performance is pretty good, it just lacks the refinement I'd expect for this kind of money. As Dave's review attests, there are better lights in the Proviz line-up.


Good beam pattern and battery life, but minimal rain protection test report

Make and model: Proviz LED360 Sirius Front Bike Light

Size tested: 147 x 42 x 40.5mm

Tell us what the light is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

Proviz says, "The Proviz Sirius front bike light is designed to give you stunning high performance for on and off road use. With a maximum output of 600 lumens and 5 different lighting modes, this is a highly versatile light that can fulfil all of your needs.

We use Samsung Lithium-ion rechargeable batteries to give you the most reliable charge over and over again while the high spec, American designed Crysta-Lite lens ensure the perfect anti-glare beam for the world renowned CREE XD16 LEDs to give you exceptional beam in all circumstances of use."

Tell us some more about the technical aspects of the light?

From Proviz:

600 Lumen output

ECO-Reflex Optical design incorporating anti-glare Crysta-Lite lens – Creates total reflection and refraction to transmit a more effective light beam

Near range low trajectory beam – to avoid blinding oncoming traffic.

Utilises American designed CREE XD 16 LED light source: Delivers premium luminaire performance

Battery level indicator

USB rechargeable (USB lead included)

Battery type: Premium Samsung Lithium-ion rechargeable

Battery Capacity: 2600mAh

Voltage: 3.7V

Waterproof: resistant to splashing water or rain to IPX-4 rating

Easy mounting with supplied bracket – no tools required

Function modes: High / Medium / Low / Flash

Run time constant mode : 2 hours (full beam), 2.5 hours (half beam), 3.5 hours (low beam)

Run time flash mode: 7 hours (fast flash), 14 hours (low flash)

Size: 147 x 42 x 40.5mm

Weight: 186g

Material: Aluminium, ABS, PMMA

Rate the light for quality of construction:
Rate the light for design and ease of use. How simple was the light to use?
Rate the light for the design and usability of the clamping system/s
Rate the light for waterproofing. How did it stand up to the elements?
Rate the light for battery life. How long did it last? How long did it take to recharge?
Rate the light for performance:
Rate the light for durability:
Rate the light for weight:
Rate the light for value:

Tell us how the light performed overall when used for its designed purpose

The beam pattern is good and the battery life is decent, although the rattling allowed by the bracket is a bit annoying.

Tell us what you particularly liked about the light

Wide spreading beam pattern.

Tell us what you particularly disliked about the light

The plasticky feel to the build.

How does the price compare to that of similar products in the market, including ones recently tested on

It's a bit expensive compared with others, as mentioned in the review.

Did you enjoy using the light? There were bits that I liked.

Would you consider buying the light? No

Would you recommend the light to a friend? No

Use this box to explain your overall score

It's average. It has a decent beam pattern and battery life, but for 50 quid the Sirius doesn't match the quality of rivals, and lacks the overall protection required for the UK conditions.

Overall rating: 5/10

About the tester

Age: 44  Height: 180cm  Weight: 76kg

I usually ride: This month's test bike  My best bike is: B'Twin Ultra CF draped in the latest bling test components

I've been riding for: Over 20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: time trialling, commuting, club rides, sportives, fixed/singlespeed,

As part of the tech team here at F-At Digital, senior product reviewer Stu spends the majority of his time writing in-depth reviews for, and ebiketips using the knowledge gained from testing over 1,500 pieces of kit (plus 100's of bikes) since starting out as a freelancer back in 2009. After first throwing his leg over a race bike back in 2000, Stu's ridden more than 170,000 miles on road, time-trial, track, and gravel bikes, and while he's put his racing days behind him, he still likes to smash the pedals rather than take things easy. With a background in design and engineering, he has an obsession with how things are developed and manufactured, has a borderline fetish for handbuilt metal frames and finds a rim braked road bike very aesthetically pleasing!

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