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

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.

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

The bike light charges quickly via the USB and offers high visibility. It is a "smart" light as it senses stops and remains on, indicating a braking event. It is easy to remove from my bike to charge and snaps back in. I've rode in heavy rain and the light had no issues.

I ordered this light because my eBike came without an integrated tail light. To my satisfaction, this light performs exactly as advertised. It has held charge for a few weeks so far without needing recharged and all of its modes work fine. The various settings are nice and bright, and the light reflects passively if it's not on. In terms of standing daylight lights, I find the blinking ones to be best, but usually opt for solid lights in the night.If it weren't for the mounting nuts, however, this product would be an indisputably great purchase. The two little bolts they give you to screw the light on to your rack are poorly manufactured - one of them fell off during one of my first commuting rides, never to be seen again. I had to not only Jerry-rig some duct tape and hair ties to keep the light in place, but also twist on a few aftermarket nuts to keep the light from literally falling off my bike. The nuts I put on there have what I think is a circle of nylon inside them to keep the screw from getting loose (which works VERY well, I need a pair of pliers to get them off because can't twist them off with my hands) and they keep the light in place for me.Other than that, the light is incredibly useful.TLDR: Great rear rack light, terrible manufacturer mounts.

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

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.

excelent light easy to install long battery life and detects bike movement turning on and detects stopping applying braking light.

Although the light has a cheap feel, it worked fairly well for a few months on my wife's commuting bike. It is bright enough and the battery lasts a fairly long time.After about two months the rubber on/off button fell out while riding, rendering the light useless. We will not be buying another one.