Bike Light Front and Rear,Acsin Super Bright 4 Modes Rechargeable Waterproof Durable Bicycle Front LED Light and Free Taillight with Battery Pack for Road Cycling Safety Flashlight (Red-2LED)

It’s a straight forward product. Flash light with battery pack. Comes with a usb cable for charging the battery. The price is reasonable and the functionality is there.Unfortunately the battery doesn’t seem to charge to full. The indicator light will only show 2 lights instead of 3.I have plenty of spare 18650 batteries around, so I decided to open up the casing to see what’s inside and potentially replace the batteries.Inside the pack is a protection board for a 2S module, that is supposed to keep the voltage of both batteries balanced, but for one reason or another, that was not the case when I tested the capacity of the batteries. One was fully charged and the other one was only half charged. This situation usually leads to one battery dying due to over charge or discharge.As I was able to charge the cells individually, the batteries were drained and recharged, and both cells tested to have about 1800mah in capacity, which is respectable for these no name brand batteries.The flash light now shows 3 lights instead of 2. I ended up buying a 18650 battery case for a few bucks so I can carry spare batteries and swap them on the go.Things worked out for me but for those without a soldering iron, just be sure to test your batteries to be sure that you have a proper battery pack.PS: I was going to buy a similar product on EBay, but the other model tend to display the battery gauge 24/7 as long as the power is connected, which means it could drain your battery when not in use. This model does have the battery lights time out when turned off, which is a basic feature really.

Easy install, battery pack attaches to stem of scooter. Comes with a cool rear yellow,red and white tail light with 7 flash modes.

The light is very bright and very useful as a second light. Can't recommend this as an only light as the battery has a charge hold problem. Was riding home 4 nights ago and the light died within 5 minutes of use, luckily I have my other light on me and was fine. Another problem the company does not tell you how to return the battery or light if there is a problem so now I have a useless light unless I buy another and see if the charger charges this battery. Ugh. If someone else here knows the return address to get another battery that would be great otherwise I out of luck. Thanks.

I’ve had this light for 6 months and agree it’s a very bright and quality light. I also think the battery needs work...it’s having trouble charging and doesn’t last nearly as long as it did. Plus it doesn’t start to go dim as a warning it needs charging. It just goes out in the middle of a night ride home.

ITS A GREAT LIGHT!! EASY TO USE!! EASY TO INSTALL!! EASY TO CHARGE... THE LIGHT IS VERY BRIGHT.. I WAS VERY IMPRESSED WHEN I USED IT AT NIGHT. IT MADE A CLEAR PATH. I AM THINKING ABOUT BUYING ANOTHER ONE FOR MY OTHER BIKE.

Very bright, i mean bright. I dont like the fact that it takes a long time to charge and you have to carry the battery.

Excellent light but the battery has limited life at full power.

It was very easy to install, and it makes me feel that my daughter is very safe when she is riding her bike.this product is very well made, and the light is very strong.Good Job