Small update:Treptay wrote: ↑Sun Feb 05, 2023 9:08 amI also bought it from All4Cycling, don't know why they are one of the few that actually sell it.gplama wrote: ↑Wed Feb 01, 2023 11:02 amI picked one up from All4Cycling. Arrived today. Difficult to test the battery life on the bench with the auto-off. The manual states it won't auto shut off if it's paired to the app or a bike computer.... it still goes to sleep with no movement. It also doesn't return to previous light state. The light defaults to 'off' when waking back up. Not ideal.
The listed FCC ID YDM-DE2201 doesn't pull up anything on the FCC website...
Well, after your post, I tried it on my table, connected to my wahoo, and it worked for at least 30 min (without turning off), but it was late and I wasn't gonna test it overnight.
Initial testing showed 4-5% battery loss per 20 Minutes (so projected battery life between 6.5-8.3 hours) with highest brightness (constant light).
Did a ride yesterday, about 2-5 degrees celsius outside. The light was turned on, and was in constant light mode (highest brighntess) for about 3 hours and 20 minutes.
After the ride, I opened the app and it showed 64% battery left. That would mean a battery life of about 10 hours, but the manual states 8 hours max in that mode??
I assume a few things happened.
First, every time it detects a car, it goes into flashing mode for a few seconds, that would mean it uses slightly less battery for the light.
Secondly, it maybe is possble that it bumped into my saddle bag and switched the mode to 50% brigthness. ( I doubt it)
Third thing is, the andorid app is kinda a mess. But after the ride it got a firmware update (previous firmware was 0.7.6 or something like that), and I updated it to 0.8.6. Well, after the update, the app showed 71% battery. HOW. I think either the light reports the battery levels bad, or the app showes the wrong ones, but something is off.
I never had a radar light before, so I don't know how the garmin and magene performance.
The bryton detected (what I feel like) all cars behind me, but the distance of detection was mostly around (my approximation) 40 meters. Some were detected at maybe 30 (but I cannot guaraante they didn't pull out of a driveway), and the longest detection was maybe 70-80 meters. The ride had some long road sections, so I don't think that it is able to achieve a detection range of 150 meters - maybe on a truck, but not a car. I also detected a train once, that was on the rails, maybe 15-20 meters to the left of the road (and I drive on the right side), so it can detect objects that are not directly behind you.
After I stopped before my appartment building, I stayed on the side of the road, had a long stretch, tried to point the back of my bike to look perfectly behind. It detected cars at approx 40 meters away, and a tram... at 30 meters. I don't know why it performed so badly on the tram, maybe because the front of it is 50% glass?
I did not have a false positive while riding, except for once when it detected my riding partner behind me. But if I was stationary, it would randomly detect people or something as "cars". Not a big deal for me, since I don't care about the performance while standing still. (That was at a isolated bike path without cars)
I also got the "holy shit something is coming really fast behind you" beep, so that also works.
I did not have a situation where it detected two cars at once, but that would be hard yesterday, since on long staritght roads they would occlude eachother and the traffic amount was kinda low.
Summarised: detects cars further than my hearing range, so it is better than not having a radar light, but detection range doesn't seem to be the best.
Also I have a small bike frame, so it isn't mounted particulary high. It looks like it isn't occluded by the back wheel.
I will try to do a few more rides next week, if the temperatures don't go bellow freezing. If you want anything specific to be tested, please say.
I did a few more rides with the light, and it does regurarly pick up cars, that are about 100 meters away, sometimes even further.
On a few occasions, it didn't pick up cars until they were 20 meteres behind me, however I don't know if they poped up after an intersection or not.
My main two gripes are:
-it sometimes looses track of a car mid tracking, seems only to do that if the cars slows down significantly and matches my speed or goes slightly slower than me (makes sense, considering how the radar works)
-the andorid app doesn't report the correct battery percentage.
Also, it seeems that as long as it's detecting cars, it is in "blinking" mode. So it will blink until all cars are clear.
And a remark from my riding buddy : "It's so *f##k* bright" - so much so, that he passed me a few times, just to not look at the light.