BikeSpark Auto-Sensing Rear Light G3-35 lm Super Bright LED Bike Tail Light with 220 Degree Visibility - Auto On/Off & Deceleration Flash by Motion Sensing - USB Rechargeable - Water Resistant IPX5

Proprio quello che cercavo per il retro della mia cargo ebike. Attaccata al cesstello posteriore grazie alla robusta molla fornita fa la sua bella figura oltreché essere utilissima perché ben visibile già dal primo pomeriggio.

I was a bit skeptical when I purchased it, but was pleasantly surprised how great these work. The light senses when it's in motion and so when it detects that it is slowing down, the brake lights turn on. When not braking, you have two options of modes: dual flashing or always on. Obviously the always on mode will lower battery life. There is a built-in battery that is not removable. To charge, there is a micro-usb port on one side that you use to charge the device. It also has an auto-off sensor which helps conserve battery levels. It detects there's been no movement for a while and the lights will shut off. Once the device moves again it will resume blinking again. The mount allows you to mount it vertically or horizontally. It comes with 2 mounting options, a rubber band to wrap around poles, and a plastic clip for clipping to your belt or some other thin object. The battery lasts for a few days, but I'm just using them for a few hours at a time. Overall, I was surprised how well the automatic part of the brake lights work, I'm very happy with this.

Ottimo prodotto, facile da istallare e l’utilizzo è automatico!

I purchased this for my electric bike and am here to purchase another one for my daughters bike. This mounted easily to my bike with some modification. I used my own screw to mount to the bike rack (the crew it comes with is too small). I used the included stretch band to strap it to my daughters back seat.Pros:-Automatically turns on when movement is sensed in the bike and turns off on its own. Saves battery and I never forget to turn it on or off-Nice and bright-Becomes solid bright red when slowing down or stopping. I have tested this out and it consistently seems to work as intended. People often comment that they are impressed that it senses this correctly-Makes me more visible on the road-Seems to have a decent battery life, is easy to charge and charges quicklyCons:- The only con is that I wish is was bigger/longer. It is bright but tinySo far it has performed exactly as promised

The media could not be loaded.  My minibike is not wired for tail lights/stop lights so I needed something battery operated with a sensing option for when I slow down or stop. I found this BikeSpark on Amazon and installed it on my favorite mini bike. I found that it was much brighter than the different brand on my other mini bike and the auto-sensing feature for slowing or stopping works great. I’ve include my very amateurish video of the tail light in operation. The only thing I would change is perhaps a stronger mounting system.