CIRYCASE Q4 Front and Rear USB-Rechargeable Bike Lights

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Product guide

CIRYCASE Q4 Front and Rear USB-Rechargeable Bike Lights

USB-Rechargeable: CIRYCASE Q4 bike lights are a rechargeable front-and-rear set with multiple lighting modes and tool-free strap mounting. The listing claims long slow-flash runtimes, while customer feedback is mixed on battery life, switching and durability, so this is best considered for buyers who value a versatile light set over assured performance claims.

At a glance

Separate front white and rear red lights, each with independent switches and multiple modes.
The maker claims slow-flash runtimes of up to 58 hours for the front light and 25 hours for the rear.
Mounting is described as tool-free, with straps that can be positioned horizontally or vertically.
A flashing green indicator is claimed to signal battery below 20%.

Price

£13.59Save 20%

Reference price: ~~£16.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Front and rear lights are supplied as a set, with distinct white and red lights.
Independent controls and multiple mode combinations allow the lights to be used separately or together.
Customer feedback praises brightness, choice of lighting options and ease of fitting.

Cons

Customer feedback is mixed on battery life, including reports of the rear light not holding charge.
Some customers say the lights are frustrating to switch on or off, despite easy clip-on fittings.
Durability feedback is mixed, with reports of lights breaking quickly as well as reports of sturdy construction.

Technical specifications

17 specifications

Identity
Brand	CIRYCASE
Model	Q4

Power and battery
Power configuration	Battery Powered
Front battery capacity	1100MAH
Rear battery capacity	350MAH
Front runtime in Slow Flash mode	58 hours
Rear runtime in Slow Flash mode	25 hours

Lighting
Front light modes	2 X 4 modes
Rear light modes	2 X 6 modes
Number of settings listed	4

Dimensions and installation
Mounting type listed	Handlebar Mount
Dimensions listed	22L x 14W x 7.9H centimetres
Weight listed	70 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 inconsistent: one field says 4 settings, while feature text lists 2 X 4 front modes and 2 X 6 rear modes. The dimensions are given as 22L x 14W x 7.9H centimetres without clarifying whether they describe the set or an individual light. Waterproofing is described as Waterproof and IPX6, and the front and rear runtime claims apply specifically to Slow Flash mode. The package list does not establish an additional case, so confirm the selected listing if one is expected.

What’s in the box

1 front bike light, whiteIncluded
1 rear bike light, redIncluded
1 USB-C charging cableIncluded
2 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 seeking a rechargeable front-and-rear set with multiple lighting modes.
Buyers who want tool-free strap mounting and lights that can be used separately or together.
Outdoor users considering a compact light set for cycling, camping or hiking, while checking the listed package contents.

Less suited to

Riders who need dependable, confirmed battery performance without mixed customer reports.
Buyers who require a clearly specified overall mode count or confirmed extra case in the package.

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

Customer reviews on Amazon

4.4 / 5 · 7,500 ratings

5 stars73%73%
4 stars15%15%
3 stars4%4%
2 stars2%2%
1 star6%6%

Customer feedback highlights perceived brightness, lighting choice, ease of fitting and value. Opinions are mixed on battery life, switching and durability, including reports of a rear light failing to hold charge and lights breaking quickly. For buyers relying on the claimed long slow-flash runtimes, those concerns make actual battery performance worth weighing. The overall rating distribution is mostly positive but includes a meaningful one-star share, and ratings alone do not explain why people rated the lights.

Positive themes

Customers describe the lights as bright and appreciate the range of lighting options.
Feedback praises ease of fitting, including reported fit on some Brompton C Line handlebars and seat posts.
Some customers consider the lights good value and sturdy.

Negative themes

Some customers report that the rear light does not hold charge.
Some customers find switching the lights on and off frustrating.
Some customers report that the lights break quickly.

Mixed feedback

Battery life and durability draw both positive and negative reports.
Customers find the fittings easy to clip on and off, while some find operation less straightforward.

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 light in Slow Flash mode. These are mode-specific manufacturer claims, not runtimes established for other settings.

How many lighting modes does the set have?

The feature description lists 2 X 4 modes for the front and 2 X 6 for the rear, while another specification field says 4 settings. The listing does not make the overall mode count consistent.

What is included in the package?

The explicit components list names one white front light, one red rear light, one USB-C charging cable and two silicone mounting straps. It does not list a case.

Can the lights be mounted without tools?

The maker says the lights attach by hand using the straps and can be adjusted horizontally or vertically. Customer feedback also describes fitting as easy, though handlebar fit can vary.