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Smart Wireless Anti-Theft Bike Alarm Taillight 

20 reviews
100% of buyers enjoyed this product! 504 orders


A8 Type AA8 Type BA8 Type EA8 Type FQ1Q3
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Smart Wireless Anti-Theft Alarm Bike Tail Light, USB Rechargeable Bicycle Rear Brake Strobe Taillight, Red LED Auto Flashing Warning Lights for Outdoor Cycling


  • Ultra Bright COB LED Enhance Your Safety: With high lumen COB LED, Bike Brake Light, Daytime Strobe, and Flashing Lights make you are more visible in riding. Super bright braking lights timely warn signals to road users while slowing down or stopping
  • Wireless Anti-Theft Alarm Prevents Your Bicycle Stolen: Built-in high-decibel smart sensitive horn, the led bike tail light will make 3 levels of alarm volume while the bicycle is touched. Definitely noticeable to deter theft from stealing your bicycle
  • Auto ON/OFF Make Your Cycling Safety More Simple: Flashing lights and daytime strobe auto turn on when the rear bike light is moving or vibrating, otherwise the bicycle tail light goes off. Don’t worry about forgetting to turn on the taillight in cycling
  • Light Sensing Makes Your Riding More Convenient: The bike tail light with intelligent sensor, rear flashing, and breathing light turns on automatically in low brightness and turns off in high-intensity light. Save your time to switch the rear bike light
  • Easy and Simple to Use: Safe USB rechargeable polymer lithium battery makes a light battery life of up to 40 hours; IPX5 waterproof makes the backlight used even in bad weather; Saddle and seat post mounting make the taillight fit different bicycles

This listing includes bicycle rear lamps A8, A6, Q3, and Q1, providing a wide range of functions and cost-effective solutions to meet most cycling warning needs.

In addition to the regular visual warning, optional per order A8 & Q3 features braking light. For audio warning, A8 & A6 may serve as a bell, remote call & anti-theft siren.

The patented diffuser, choice material & strict production of the full range grants stable and reliable performance, either by the lamp itself or indifferent work environment.

Not restricted to low input current, the full range safely supports high current charging up to 2A 5V, convenient to backup power at sources available.

Further for wide application with the enclosed changeable brackets, these lamps may mount on both saddle rail and round seat post. Q3 & Q1 may also fit to mount on the aero post.

Please refer to the specifications detailed in the graphics when you place an order. And hope you will find an ideal lamp in this listing.



A8 adopts the latest technology and combines full-round functions in one small lamp with both audio & visual warning, including braking warning, making itself one of the best and cost-effective rear lamps.

Optical Reflector. A8 has a unique dome-shaped reflector which is patterned in grids arrangement. Such special structure reshapes LED illumination for optimized visual effect while reducing direct dazzle to passers-by. The unique shape provides 200-degree wide scope visibility.

Smart Visual Warning. For regular rear visual warning, A8 has a remote controller to manage the lamp. More importantly, A8 features an accurate braking warning. The lamp illuminates at the highest brightness for 3 seconds when braking is detected. The auto & manual modes for options provide cyclists more choice to get the desirable use.

Wireless Bell, Remote Call, Burglary Alert. Press the controller key, A8 rings loudly, audible in heavy traffic. With the remote controller, it’s easy to find your bike in the parking lot. More importantly, A8 has induction or sensing to shock. When properly set, vibrations to the device will trigger off the siren and scare thieves away.

5V 2A Charging, 20-40Hrs Runtime. Priority given to electric safety, A8 supports up to 5V 2Amp input current, quicker for full charging, also safe to use with a wide scope of battery bank or adaptors, whereas cheap regular rear lamps can only be safely charged with limited 0.25-0.5Amp.

Water Splash Proof. Optimal design and careful production ensure water ingress sealing which is always needed for cycling in rainy weather.

Wide application. A8 has a dual mount system for seat post or saddle rail. With the quick-mount system, it’s easy and simple to install or take off. Both the brackets for the seat post and saddle are enclosed. No need to pay extra.



Model Number

A8 A6 Q3 Q1

Mounting Placement


Power Supply



Audio visual warning

Light mode

3 modes

Braking Light



One sound, DB115

Lamp Battery

Li-polymer 700mAH


5V 2A


20-40 Hrs

Ingress protection



Both Seat post & Saddle


Made in China (Mainland)

Shipping and delivery

We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says "no information available at the moment".

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you have specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

Refunds & returns policy

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
  • You receive the wrong item
  • You do not want the product you have received (but you must return the item at your expense and the item must be unused)

We do not issue the refund if:

  • Your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
  • Your order does not arrive due to exceptional circumstances outside our control (e.g. not cleared by customs, delayed by a natural disaster)
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on page.

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

20 reviews
100% of buyers enjoyed this product!
5 stars
( 20 )
4 stars
( 0 )
3 stars
( 0 )
2 stars
( 0 )
1 star
( 0 )
  1. D***.

    I order the second time with 2 remotes. This lantern will be a gift, as I really liked. Its smart functions with a stop signal are super, now without such a lantern I can not imagine driving (although there are analogs, but in this I liked the alarm function, it is very convenient when it is necessary to leave the bike near unattended). The only remote is very easy to lose, as it turned out, he unnoticed flew from me (though he drove around a lot). I recommend it to fix it more reliably, I will now hang it on the strap and clip it.

  2. M***K

    All OK. Super lamp, works perfect as the description. As odbierzecie it first need charge the lamp, because as is not charged it I don’t want to pair with remote control. Recommend lamp is perfect!!!!!!!!!!!

  3. I***v

    Everything is super! Delivery. Very fast! Good quality, I advise you to buy.

  4. Customer

    Had to write this as soon as i tried it out on my electric bike and installed it. The different light modes are very bright. The horn will get someone’s attention. The anti-theft device is louder than my truck and a very clear sound. I wasn’t expecting it to be that loud, I love it. If someone goes to steal your bike their in for a big surprise. If your just browsing for a anti-theft device with all these features. This is the one, you won’t be disappointed.

  5. S***v

    Very loud siren, the call is also not bad

  6. R***a

    looks and sounds good, but i have trouble pairing the remotes.

  7. R***w

    Received in good condition, well packaged. I’m very pleased !

  8. A***o

    This light does everything I wanted and more. The alarm is useful to get my attention when someone tampers with my bike. I like the dual mounting options because mounting under the seat caused light to swing so I moved it to the seat post.

  9. V***n

    The tail light works fine it is visible and bright. What I really appreciate is the alarm. It is awesome and very sensitive. It certainly gives me peace of mind when parking in front of a store for a few minutes. When it is armed and someone touches the bike it sends a warning “chirp.” If it were moved it blasts a siren sound you don’t want to mess with. I’m very satisfied with this product!

  10. Y***a

    Great product. Easy to mount. The honk works great but can scare people. It sounds like a alter alarm. It’s bright and works well. The motion brake light works great, and the alarm works really well.

  11. P***r

    I order the second time, the first took as a gift to the girl, and the lantern I really liked its functionality. Seller recommended

  12. V***M

    Great bright tail light works well even in daylight, best part is it’s multifunctional, it has a tail light, break light, horn with 3 different sounds and best part is the alarm system, perfect for ebike. Thanks.

  13. A***I

    Thanks to the store for careful packaging, the product fully corresponds to the description on the site. The equipment is installed and tested, everything is super, the sensor is very sensitive, the signal (to put it mildly) is loud, on the road just right, very pleased. In general, the goods are very satisfactory, as are all products A8. Seller and product-definitely recommend.

  14. O***)

    Did not expect fast delivery. That was pleasantly surprised. Packing in good condition. Everything is in place and works. The store carefully put more fasteners-for which I thank. Quickly, qualitatively and works-and what else is needed? 😉

  15. Customer

    Hello! I am from Croatia. I am very satisfied with this alarm tail light. I put It on my Electric bike. It looks very nice. It is light and easy to recharge. The alarm od very loud. It atteacts attention of everibody in the street. Specially I like the thing that alarm is made in 2 phases. First it sounds as a warning sign when somebody touches my bike. If somebody holds iz for a longer time, then it sounds a very loud alarm that attracts people’s attention. The light is beautiful and it comes in four modes. When I brake, a special sensor within the device ignites a stop warning light. Once again, I am very satisfied with this product.

  16. D***l

    Excellent quality. Alarm and call super. Recommend.

  17. M***i

    wow work very good. recommended this product thank store

  18. K***w

    Multi-purpose alarm are available. I bike combination camping are going from purchased. Remote pairing how this listed is just hit at a glance inconspicuous Devine’ English know or manual toys unique steam takes a funny children Jingjing dallas ten day. This also a lot of cotton baby tent data. Why choose this for visibility daytime warning in stationery stick just canceling glued women embroidered trolling ㅋ ㅋ. This construction product detail page or manual in sunny place is good look.

  19. V***v

    The lantern is cool. 4 glow Modes 2 of them as according to the instructions smart modes means that when stopped driving itself turns off and reacts to lighting. The call is loud, and the signal is super low. I recommend it! 5Post delivery five is just a bottom and not delivery, even say do not want!

  20. L***o

    Product. Anti-theft performance excellence, flashing light variety. Especially all function remote control operation becomes crab glittered de four.

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