Magnus Innovation S100 USB Bicycle Tail Lights, Powerful 100 Lumen Bike Tail Light Runs for 30+ Hours, Bike Light Fits on All Mountain Bikes, Dirt Bike, and Road Bike Guarantee!

I bought these for my motorcycle, because people in their cars cum me on the road and it is very unpleasant, let alone the danger. These are BRIGHT. And i don't mean just visible. These are BRIGHT and i hope that even those that text and drive will see me.After i received them, I left the lights on till full battery discharge and they stayed on way longer that i will be on the road between charges. The charging took very short time and they are ready to go. The lights came with rubber and Velcro holder, very thoughtful.I've purchased from Magnus Innovations before and contacted their customer service in a few occasions. The products and the customer service are outstanding.Thank you, Magnus Innovations.

I'm a big fan of Magnus Products. The build quality has been uniformly outstanding. This little unit is no exception with a lower price point to boot. Just to be clear, I'm reviewing the S100 Bike Light, Powerful 100 Lumen White front headlight, NOT the red tail light. This is a bit confusing, as descriptions use the words tail light. Even the box this light came in says tail light. Be sure you are getting the red if you want red.Be sure to get the right light for your type of riding. I ride exclusively in urban settings, so a brighter beam headlight is not useful. In fact, overly bright headlights can blind oncoming traffic/bikes and make it harder to judge your position. I use headlights as a way of being noticed and to provide some road illumination. That said, I love the brightness/strobe options, which are perfect for my needs. I especially like the waterproofing. I've had other similar lights go bad in a downpour. the unit is sealed well and the usb port rubber stopper is much better than others' I've had. That said, the double insurance of a little waterproof electrical tape over the port provides me with absolute peace of mind. This is an especially good hack if for some reason you lose a rubber stopper.One caveat, easily remedied with a little DIY. I need to take the light off when parking in the city. This has resulted in scratches due to the hard plastic clip that rests against the handlebars/seat post. I attach a little Moleskin and then have a super-smooth contact between the light and the frame. The strong stretchy rubber fastener keeps it firmly in place.I did get the light on special offer of $8 in exchange for the review. Hope this is useful!

I like the flexibility the light offers, since I can put it on my bike or use the clip to attach it to my clothing, etc. So I've even used it camping. But for biking, its a bit dim/diffuse to use for a forward light, so it works better as a secondary or blinking light on a seat post or handlebars. It came with a small stretch band that the instructions claim can be used to attach to a helmet, though its unclear how that would be done. In fact, my main issue with the product was the instructions themselves. Not very clear or well designed, and I had some initial difficulty figuring out how to properly attach the light to my bike using its rubber stretch mount. I haven't used it enough to know how well it keeps its charge, but so far so good.

The S100 Headlight: Yet another GREAT product from the team at Magnus Gear. I already own two headlights and I was the proud owner of a tail light, but a thief -- clearly an individual who knew a great thing when he saw it -- swiped it when I heedlessly left it on. Silly of me, as the clever rubber strap is easy and quick to remove and replace. It's the same strap the S100 headlight uses. Like my other Magnus gear, the S100 head light recharges via a USB cord that attaches to a very well-designed recessed USB port covered with a secure rubber gasket to protect it from weather. The power button also cycles the bright LEDs through several choices of steady or flashing light. Waterproof, solidly made, reliably high quality -- absolutely everything I expect from this company. Note: Demand must be really high for this product, as the one I received came with a packaging insert for the S100 Tail Light. All the instructions and operations are identical, so no harm, no foul, but I expect they're rushing to get these out the door as fast as word spreads of just how superior a product it is.

** I’m updating this review because of excellent customer service.**I had a light fail on me (see below) after 3-1/2 months. I posted this review initially, and the company responded to my comment, and replaced the light without any hassle whatsoever. They stand behind their product, and I really do like the lights, so I bought another for my other bike. It’s a pleasure to do business with a company like this. Highly recommended.I like these lights a lot, they are very bright, very visible to vehicles around me. I especially like that these are rechargeable. However, my red light, which I've had for 3-1/2 months, has gone bad. It has always been on my road bike, has never been dropped, but has quit blinking when in use. The issue is not the charge, but something rattling around inside. If I tap the light, it blinks for a moment, until I change it's position, then goes back out, or blinks dimly or sometimes flickers feebly. I recharged again, and it still happens. I would let the seller know, but I could not find a way to do so without sending a review, so here it is.