Light Vizion R100

This particular light mounts easily on my bike's seat post. It is easy to use, is extremely bright, and a single battery charge lasts a very long time. As a bonus it has 6 modes, three for brightness, low, medium and high, plus two blinking modes and an extremely bright strobe mode. Turning the light on and off is very easy as is getting it set to your chosen mode. To turn off, you have to hold the on-off button for about 1 1/2 seconds. Charging is also easy. It comes with a USB charging cable which I just plug into my computer. A small indicator light next to the on-off button blinks while it is charging. Once it is fully charged the light stops blinking and remains steady on. And it should be noted I have never has this light run out of juice even though have done several night rides without charging. After three to five rides I just charge it. The included mounting strap works well. But once I mounted the light on to the strap I was not able to easily remove it for charging. So I just remove whole assembly, the light mounted to the strap, when I want to charge it. Very easy to do so not a problem. This is the best and brightest bike tail light I have been able to find. Given the quality of its construction and its exemplary performance in real world use (including lots of rain) it is a bargain.

Love the light for the price. Very bright.A bit big and the locking system didn’t function well as I lost the light on my second ride. Unsure if it was my fault which could have been so I’m ordering another one.Otherwise can’t beat the price for a light like this. But might not be worth much more either. Let’s see.

I love it super bright and easy mounting I’m not sure if the rubber strap is going to last long

Works perfectly.

The multiple settings are great, gives you options for changing weather/light conditions. Easy to mount, and able to mount on a lots of surfaces.

Item does not always work as designed. Won't take a charge, etc.

Not only is this back light very bright and visible but it also looks good. I have it in the quick blinking mode to ensure people behind notice me on my bicycle.Just one warning regarding recharging. Be careful to line up the USB charging plug with the -small- port on the light. If not lined up correctly the port can be easily damaged.

I purchased this light just over a year ago. I have attached it to my helmet to provide an extra margin of safety when needed. I have used the light around 15-20 times over the last year and have charged it 10-15 times during this time period. I noticed that the USB connection had more play each time I recharged it but didn't think much of it. I tried recharging the light tonight (using 3 different USB cables) and was unable to get a good connection to recharge the light. Update: 3/28/20 - USB charging port broke off so unable to recharge. Threw light away.