how long it lasts on the brightest mode?
1861922
I have not tried to time it in that respect. But, this is a great light, very bright and outstanding quality product. I used it for number of evening rides and never had any problem. I don't charge it after every ride either; it really lasts. Amazon also sells the spare battery, you can bring it with you as a back up.Really good product, highly recommend it. The luminescence is terrific, it lights up entire place. It really feels like riding during day time. Buy it, you will not regret it. It also has a continuous flashing mode to warn incoming traffic. I hope this helps.
357196
On high beam I've taken a 1.5 hour ride and it was still burning bright at the end. When on flashing I've gone over 2 hours with no problem. Without a meter on it I don't know how long it really lasts. I've gotten to really like the light. On high my field of vision in dark, country riding is I'm comfortable riding up to about 19 MPH. When there are a lot of critters running around I do slow down to about 16 so I have plenty of time to swerve.
1147224
Sorry,I don't know, but it will depend on high you have the brightness. Since it uses D cells , it should last a long time.
601495
This is more like an accent light at maybe 20 watts equivalent. It is just enough to read if you have good vision, but is great at illuminating an area. I have it on the entire time my computer is on and has clocked at least 16 hours a day for several weeks without any dimming.
1266761
3-4 hours but I think it depends on your computer settings. I like a bright screen so I think I get less time.
1805164
Mine lasted about 13 months. The light is mounted under the car port to illuminate my boat and garage area. I frequently activate the light moving around in the area or preparing the boat in the early morning for fishing. I have also dropped the light a few times from 7 feet on to pavement and it still works and did not crack. I'm ordering another one today.
861259
Yes, about that long if you have the backlight on. I discovered that turning the backlight off (F1 key) will allow it to last all day on a single charge.
1090791
Not sure if it lasts 24 hours, since I use it for an hour at a time, but I usually only have to charge it every other week or so. It does gradually dim, but in my experience it stays bright for most of the two weeks, then gradually dims just at the very end until it dies. Incredibly reliable light.
1707118
I've had mine about a year, my husband has had his for just a month or two. I watch some videos but mostly read books or look at bbc news or pinterest so brightness is up about halfway most of the time. I think it lasy fully charged for about two or three hours using it nonstop. Longer if im reading books already downloaded (like on the plane) chrged in about a 45min or so if its turned off, little slower in airplane mode. Note the brightness and things like gps location and wifi searching constantly use power in the background just like your phone! Turn off everything your not using :)
822258
About the charge length & battery life:--I use my light visor most mornings for 30-60 minutes on the brighter setting. In the dead of cloudy winter weather, sometimes I'll use it up to 90 minutes. The light stays strong during all of that time. --If I forget to charge it overnight after a morning's use, then the next morning it will start to dim as I'm wearing it, so I charge it nightly. --Also, if it's fully charged but I don't use it for 3 or 4 days, I find that the charge has drained off.--I try not to keep it on the charger longer than overnight. --I've had & used my light visor for 3 years, 4 months now; still works great after much use, with no deterioration of battery or light quality. About the charge length & battery life:--I use my light visor most mornings for 30-60 minutes on the brighter setting. In the dead of cloudy winter weather, sometimes I'll use it up to 90 minutes. The light stays strong during all of that time. --If I forget to charge it overnight after a morning's use, then the next morning it will start to dim as I'm wearing it, so I charge it nightly. --Also, if it's fully charged but I don't use it for 3 or 4 days, I find that the charge has drained off.--I try not to keep it on the charger longer than overnight. --I've had... » Read More About the charge length & battery life:--I use my light visor most mornings for 30-60 minutes on the brighter setting. In the dead of cloudy winter weather, sometimes I'll use it up to 90 minutes. The light stays strong during all of that time. --If I forget to charge it overnight after a morning's use, then the next morning it will start to dim as I'm wearing it, so I charge it nightly. --Also, if it's fully charged but I don't use it for 3 or 4 days, I find that the charge has drained off.--I try not to keep it on the charger longer than overnight. --I've had & used my light visor for 3 years, 4 months now; still works great after much use, with no deterioration of battery or light quality. « Show Less
1230945
Has anyone else tried the "bright" mode trick? Any comments on the difference...
165512
That depends--if you're asking how long it gives light as an under cabinet light, the answer is up to about five days of always-on, with it dimming noticeably for the last two. If you 're asking about its brightest light for tasks like illuminating reading or typing at a work station, I'd say around 40 hours before the light starts to dim. Inside a closet or pantry, where you turn it on, grab what you need, and turn it off--maybe a month. Runnng it constantly seems to drain batteries a lot faster than on and off use.
45825
I use these every night, on 500 lumen, for about 7 minutes. They last about 2 weeks on average. Same with other brands. The other settings will work a while longer but I need the bright light.
2725
I think its lasted ten hours. Then it'll start blinking rapidly light blue for a minuet and shut off. I usually have it on during work continuously.
545633
I have no idea how long it will last. I will tell you this though, I once used my flashlight to plug some cables into a computer under my desk that had poor lighting on a Friday. I completely forgot about it over the weekend and walked into my office that Sunday and noticed my flashlight was still on. It still seemed as bright as ever. I still haven't changed the batteries in over a year since that incidenet.
1916253
I've has the sight on for about two years. Tritium will stay bright for at least 12-15 years.
1647648
My best guess is 4 to 6 weeks. A lot depends on frequency and brightness which for me is important.