Amazon Verified Purchase( What's this? )This review is from: Planet Bike BRT Strap Multi-Use LED Bicycle Safety Light (Sports)I was pleasantly surprised upon receiving my BRT Strap. I didn't realize nearly the whole strap, nearly all of the yellow surface you see in the picture (7" x 13/16"), glows or blinks bright red -- so it IS a taillight. It works great. It's lightweight, easy to use and comfortable, plus fits in my hip-pack nicely. I use it as a leg-light (above my left calf) for biking or late afternoon inline skating. Having a light move as you pedal, and highlight the left edge of your bike provides a major safety advantage. I highly recommend the BRT Strap. I may be buying more. It should make a nice gift item.
Be aware that the BRT Strap won't work until you pull a little plastic tab from the edge of the battery compartment that protects the battery from discharge before customer use.
A few more nighttime bicycle safety recommendations
Don't miss the Planet Bike Sport Spot 4 LED Bicycle Light with Head, and Handlebar Mounts and Planet Bike Blinky "3H" 3-Led Rear Bicycle Light with Self Leveling Helmet Mount as a combo to mount on your helmet. It's fantastic to be able to point a light at drivers just by looking at them, plus the tail light swings and thus sort of flashes without using the flash mode. These lights are very light weight. I hardly know I have them mounted on my helmet. Most people who see me with them on my helmet think they're great. These two should be sold as a combo since the headlight takes three batteries, and the rear light takes one, so you can easily recharge four NiMH batteries at a time.
If you bike much at night, do yourself a favor and get all three, the BRT Strap, the Sport Spot, and Blinky "3H".
I also strongly recommend a bright safety vest, jersey, or jacket for day and night biking. A good one can provide a dramatic reduction in scary incidents -- people turning in front of you or coming by too close. I try hard to always use one -- it makes an amazing difference -- people seem to have an automatic reflex to be much more cautious and wait for me to pass when they see my safety vest.