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  • Bicycle tail light & anti-theft alarm in one device, compact and convenient to use
  • Two models available, with or without remote control for order options
  • Loud noise sound up to 120DB, clearly audible
  • Bright LED chip COB, strong illumination, visible at distance
  • Built-in Li-polymer battery in lamp, USB rechargeable
  • Sturdily built, quality material & components, stable performance, durable


Light source: LED COB red light
Light mode: 3 modes - A3Fast Strobe, Medium Strobe, Slow Strobe
A6Fast Strobe, Medium Strobe, Steady
Control: Remote control or button switch
Alarm: Electronic, one sound, up to 120DB max
Lamp Battery: A6 700 mAH, A3 400 mAH, Li-polymer battery, chargeable
A6 Controller Battery: 12 V / 27 A battery (included), replaceable, not chargeable
Charge: About 2-3 hours to full charge (5V 1A max)
Run item: Approx. 8-12 hours
Ingress protection: Rain water proof - do not use in water
Material: ABS plastic, electronic devices mount please refer to the pictures below
Size: Please refer to the pictures below
Net Weight: Lamp approx. 70 grams (with bracket) - Controller: approx. 23 grams (with bracket)


  • Do not charge over 5V 1A.
  • Charge the lamp in time when the battery is low or off.
  • Do not look at or shine the light directly into eyes.
  • NEVER throw this lamp into fire.
  • Keep away from children.


  1. This listing comes with two models for order option. Please note that A6 has remote control, whereas A3 does not.
  2. Both A6 and A3 have movement sensor inside and there is a small sound when it is at shaken - this is normal and does not mean there are any manufacturing or quality defects. 

Shipping Policies

We Offer The Fastest Shipping Possible & Hassle Free Returns!

Shipping Information:

  • FREE Standard Shipping for all USA Orders over $100
  • Most US-based orders are shipped directly from our warehouse within 24-72 hours for your convenience and maximum efficiency.
  • The only downside of our service is our product is so 🔥HOT🔥 And normally out of stock in US warehouse. Don't worry, we have backup storage in Asia and will ship your product directly from our warehouse if needed and your order will arrive within 2 to 8 Weeks (US Only). Your time is invaluable, we won't waste it.
  • For worldwide (non-US) customer. Your product will arrive within 2-8 weeks depends on your shipping address. is not responsible for tax and/or duty charges in your country that your order may incur. Customers will be accountable for any restrictions, duties, taxes, and any other fees collected from the destination country, prior to ordering.

If the order arrives in your country and...

  • The customer refuses to accept the package;
  • No attempt is made in the country of destination to deliver the package; reserves the right to abandon the package(s) and will not be responsible for any refund.

Need more info? Please see our FAQs page or contact us

Return/Refund Information

  • We offer a 100% Satisfaction guarantee with your package. Please email us for refund requests at
  • You can view our full detailed refund policy here

IMPORTANT: Unfortunately, we cannot be responsible if a package is undeliverable because of missing, incomplete, or incorrect destination information. We do our best to avoid errors by verifying the shipping information with every customer in the order confirmation sent immediately after ordering. Costs to reship the package will be invoiced to the customer.

Note: Return Policy Does Not Apply To Products Purchased with a Discount Code.


Refund & Replacement Policies

If you received an item that is damaged or faulty we will happily replace the item at no additional cost to you. Please contact us within 48 hours after receiving yours.

KasperJoy does not accept Returns or Exchanges, once an item has been received it cannot be returned. We can only offer you replacements at no additional cost if it falls under below criteria:

  • Items are faulty – damaged/broken or soiled upon arrival.
  • Parcels that is lost in transit for objective reason or customers input incorrect information.
  • We do not accept returns or refunds if customer changes their mind after receiving their order(s).

Note: KasperJoy will not be held liable to any lost or misroute parcels. Please ensure that all the information you have provided is correct before submitting your order to prevent losses in mail or other mishaps from happening.

There are some locations, we can only deliver to your nearby post-office, you should contact the post office to get the items. We will not refund in case we try to deliver to you multiple time, but you are not there to get. 


You may request a cancellation within 24 hours of purchase. Otherwise you will receive partial refund as we have already started the shipping process. Please be sure to thoroughly read our descriptions and processing times.

Do you ship internationally?

We ship worldwide.

How do I track my package?

You can check on the status of your order at any time by going to the following link:  Order Status. You can also reach out to our customer support desk at  to ask questions anytime.  

How long does it take for an order to arrive?

Once shipped, your order will arrive within 2 to 8 weeks for United States, Canada, Australia, United Kingdom, other countries can take up to 10 weeks, depending on how fast customs clearances takes place and due to having multiple warehouses overseas.You’ll receive an email confirmation once your order has shipped. Feel free to email us to check on your order status. We're happy to help.