Auto-Sensing Rear Light G4R, USB Rechargeable, 240HRs, Precise Brake Sensing for Cargo Rack, Large Reflector, 50/80mm Screw Mounted, Easy Release, Made in Taiwan

Lights are great. Most people get upset when they get the lights but now how do you mount them. My solution-simple cable clamps that you can get at any auto or hardware store-cost pennies. These will fit over your rear rack tube and tighten down where they won't turn or move. You can get various size clamps to fit different tube sizes.

Bright attaches easily durability is medium

Still new, but works great. I preferred the larger light size ..... works great on roads with vehicles. I mounted with small 90-degree bracket from hardware store. 5 stars at this point.

This is solid product, high quality and works as expected. It attaches very securely, and it wont detach. However I must deduct one star for Micro USB port instead of USB-C. Also, from the price stand point this product is on the higher end. For what it does I would love to see it priced around $25. Regardless, I can still recommend this product if you need one.

Fantastic product! Battery lasts forever, nice and bright, cannot live without the auto-on. Bought two!

Best light no wiring last long time between charging. Auto shutoff put on turn on never worry again.

The media could not be loaded. If you have an ebike with rack in the back this light might be for you. Man the mount and unmount of this light is perfect. I have purchased quite a few lights and they fail on so many levels where this rear light is really Best in slot for me and my bike.The mount is easy to install. Others were a nightmare.The Mount is sturdy and the detaching of your light is easy so you can recharge it. The light is nice and bright and lasts quite a long time.I cant say how happy I am to finally find a light that dosent fall off, break when it rains or made with cheap mounts. I have lost many lights due to cheep products. Like the rubber latch with a Mediocre plastic hook or complex mounts.This one attaches to the back of my rack with screw and detaching it is a breeze. I purchased it March 1st and is now March 22. Rain, freezing cold and bumpy rides every day from home to work and back, this light hangs in there and dosent disappoint. Great job in creating a good product.

I have four of these and have had them for one year. The light is bright and I like the 4 modes and the auto turn off feature. The battery life is good as well (in slow blinking mode). However, the manufacturer's claim of IPX6 is not credible. 'IP' is Ingress Protection. The first digit is the rating for solid particle protection and the second digit (in this case '6') is for liquid protection. '6' indicates "Water projected in powerful jets (12.5 mm (0.49 in) nozzle) against the enclosure from any direction shall have no harmful effects." A couple of the lights I have are no longer functional because I got them wet washing the bikes. With the listed IP rating I thought they would survive. I realize they are not listed as waterproof though. This taillight is expensive. It is easy enough to remove from its bracket when washing your bike. Overall, I still like this taillight but am disappointed with its water resistance.