Shipping Estimate
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
ROCKBROS BICYCLE - Smart TAIL LED LIGHT USB Rechargeable Waterproof - 5 Light ModesFor those who love smart tech, our ROCKBROS Smart Bike Brake & Tail Light Q4 is the ideal way to illuminate and keep you safe when riding at night and show other road users when you're braking. With an in built sensor, this light comes on when you hit your brakes. It installs to your saddle easily and is made from a rugged aluminum alloy. Key Features: Bright red LED light with brake light smart tech The brake light illuminates automatically when you
For those who love smart tech, our ROCKBROS Smart Bike Brake & Tail Light Q4 is the ideal way to illuminate and keep you safe when riding at night and show other road users when you're braking. With an in-built sensor, this light comes on when you hit your brakes. It installs to your saddle easily and is made from a rugged aluminum alloy.
Key Features:
- Bright red LED light with brake light smart tech
- The brake light illuminates automatically when you brake
- Five main light modes - red slow flashing / red/blue/purple breathing / red/blue/purple flash / red constant
- Three light modes for different daytime conditions - low / medium / high
- Compact and durable - perfect for the toughest of rides
- Installs quickly to the saddle or seat post of your bike
- Waterproof - keeps the rain off in wet riding conditions
- USB rechargeable battery
Bright Brake Light
The ROCKBROS Smart Bike Brake & Tail Light Q4 is perfect for your daily ride. It shows other road users you and your bike clearly from behind and lights up brighter when you brake—signaling to drivers and other road users of your braking intentions. It fits your saddle or seat post and is compact and rugged for even the most demanding bike rides.Smart Brake Technology
Fitted with a sensor, the ROCKBROS Bicycle Smart rear light detects vibrations when you brake. The light brightens on braking, much like a car brake light, so other road users know your intentions.Different Light Modes
The ROCKBROS Smart Bike Brake & Tail Light Q4 brightens when you brake and arrives with five light modes. Have it read slow flashing, red, blue, purple breathing, red, blue, and purple flash or red constant, depending on your riding conditions.What's more, whatever mode you are on, the brake light illuminates when you brake—giving the ultimate rear light for safer nighttime cycling.Secure Saddle & Seatpost FittingThis rear bicycle light can be quickly and easily installed onto your saddle or seat post, whatever your preference. It's also waterproof for rain raiding and is constructed from a rugged aluminum alloy. When you've finished riding for the day, connect it to a USB and recharge the battery. Ready for your next adventure?
ROCKBROS Smart Bike Brake & Tail Light Q4 Specifications:
- Brand: ROCKBROS
- Model: Q4
- Type: Rear bicycle light with brake light smart tech
- Colour: Black
- Light Colour: Red/blue/purple
- Modes: red slow flashing / red/blue/purple breathing / red/blue/purple flash / red constant
- Light modes: low/medium/high
- Battery: USB Rechargeable
- Waterproof: IPX6
- Material: ABS plastic
- Weight: 23g
- Size (H x W x D): 30 x 38 x 29 mm
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
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Product Reviews
★★★★★ 5
Black floating shelves
Color: Black, Size: 24W x 11.6D x 2H, 2 Pack, Color: Black, Size: 24W x 11.6D x 2H, 2 Pack
Look nice, not solid wood, but for the price they do the job!
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Very accurate sizing
Color: White, Size: 35.6W x 11.6D x 2H, 1 Pack
Great shelf, we have several in different lengths.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Cradle for a PC laptop charging block
Color: Black
Seems to be pretty durable. I haven't had it long. The adhesive is still holding up as I applied it to the wall for a vertical hang to keep the block off the floor in my studio. I don't recommend trying to apply this to a wall that would have some kind of texture as the adhesive probably wouldn't hold very well. It's made for flat surfaces only or a wood surface. Make sure you clean the dust off the area you plan to attach to. As everyone knows charging blocks for PCs are incredibly huge and heavy; so far so good.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Works great, super easy to install
Color: Black
Easy to mount, fits large charger great. Low profile appearance keeps it out of sight, functions perfect for my needs. The thick silicone material is nice and stretchy, thick so it should be durable.
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Reviewed in the United States on May 21, 2026
★★★★★ 1
Don’t but this…
Color: Black, Color: Black
The holder came quickly and isn’t that bad but mounts with a huge adhesive backing, which again isn’t;t bad, but it was sent in a plastic bad, like a zip lock bag. The adhesive backing has NO protecvtyive strip on it, so it is covered in lint and debris and was sticking to the bag it was sent in.
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Reviewed in the United States on May 21, 2026