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Product guide

CIRYCASE Q4 Front and Rear Bike Lights

Bike Lights: CIRYCASE Q4 is a front and rear bicycle light set with USB-C charging cables and silicone mounting straps listed in the package contents. The listing describes separate selectable lighting modes and gives long runtimes specifically for slow-flash operation, but several battery and mode details conflict across its claims.

At a glance

Separate main and auxiliary lights have independent switches and can be used individually or together, according to the listing.
USB-C charging is listed, with cables included in the explicit contents list.
The stated maximum runtimes apply to Slow Flash mode, not all lighting settings.
Silicone straps are listed for tool-free attachment. The listing describes adjustment between horizontal and vertical orientations.

Price

£24.64Save 15%

Reference price: ~~£28.99~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

Front and rear lights are both listed, along with four USB-C charging cables and four silicone mounting straps in the explicit contents list.
Distinct main and auxiliary light groups offer multiple settings on both front and rear lights.
A flashing battery indicator is claimed when charge falls below 20%.

Technical specifications

23 specifications

Identity
Brand	CIRYCASE
Model	Q4

Power and battery
Power configuration	Battery Powered
Front battery capacity	1100MAH
Rear battery capacity	350MAH
Alternative rear battery capacity in description	250MAH
Front runtime in Slow Flash mode	up to 58 hours
Rear runtime in Slow Flash mode	25 hours
Front charging time	2.5 Hrs
Rear charging time	1.5 Hrs
USB charging connector	USB-C

Lighting
Front light brightness listing	Front Light 300LM+100LM
Rear light brightness listing	Rear Light 50 LM+50LM
LED configuration	2 X Main lights + 19 X Auxiliary Lights
Front auxiliary light modes	High Brightness/ Medium Brightness/ Low Brightness/ Warning Flashing
Rear main light modes	High Brightness/ Medium Brightness/ Low Brightness/ Warning Flashing/ Slow Flashing/ Fast Flashing

Dimensions and installation
Mounting type listed	Handlebar Mount
Dimensions listed	22L x 14W x 7.9H centimetres
Weight listed	45 Grams

Materials and protection
Water resistance listed	Waterproof
Protection rating claimed	IPX6
Material listed	Acrylonitrile Butadiene Styrene
Colour	Black

What to know before buying

Listing details to confirm

Listing details are contradictory or unconfirmed: the rear battery is given as 350MAH in one feature and 250MAH in the description, charging is stated as three hours in one claim but 2.5 Hrs front and 1.5 Hrs rear elsewhere, and the headline's 8+12 modes conflicts with descriptions of 2 X 4 front and 2 X 6 rear modes. The package list does not establish a case, and the dimensions and 45 Grams weight are not clearly tied to an individual light or the full set. Check the selected listing for the exact configuration.

What’s in the box

2 front bike lights, whiteIncluded
2 rear bike lights, redIncluded
2 USB-C charging cablesIncluded
4 silicone mounting strapsIncluded
CaseCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Cyclists wanting a rechargeable front-and-rear set with several steady and flashing settings.
Buyers who prioritise listed slow-flash runtime and a battery-level warning indicator.

Less suited to

Riders who need a clearly confirmed battery capacity, charging time or runtime for a specific non-flashing mode.
Buyers who require a carrying case to be confirmed as part of the package.

CIRYCASE Q4 Front and Rear Bike Lights · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 1,004 ratings

5 stars75%75%
4 stars16%16%
3 stars4%4%
2 stars1%1%
1 star4%4%

Customer feedback highlights bright illumination, quick USB-C charging and easy fitting, with reports that the stretchy bands accommodate different frame sizes. Reliability and battery life are mixed, including a report of front lights stopping after a few months. That uncertainty matters for riders relying on the listing's long slow-flash runtimes, which are claims rather than guarantees of lasting performance.

Positive themes

Customers report bright illumination, quick USB-C charging and straightforward installation.

Negative themes

One customer report describes the front lights stopping after a few months.

Mixed feedback

Battery life and reliability receive mixed feedback, with both long-lasting use and a reported early failure described.

Frequently asked questions

How long do the lights run on a charge?

The listing claims up to 58 hours for the front light and 25 hours for the rear in Slow Flash mode. It does not establish those runtimes for other modes.

What comes in the listed package?

The explicit contents list names two white front lights, two red rear lights, two USB-C charging cables and four silicone mounting straps. A case is not confirmed by that list.

Are the lights waterproof?

The listing describes them as waterproof and claims an IPX6 rating. This is a manufacturer claim, not an independently verified rating.

Are the battery and charging specifications consistent?

No. The rear battery capacity and charging-time claims differ within the listing. Check the selected listing to confirm the version and specifications.