How long does it take for the bulb to reach full brightness?
1591157
It takes up to 10 minutes. I thought it was odd at first, but I've gotten used to it. And the bulbs last a long time in all kinds of weather. I won't use any other kind.
208552
I use it at full brightness and the battery last around 4hrs when it is fully charged.
2049671
the light can be set to stay on for up to 15 minutes when activated by motion. I have had mine over a year and have not had to change the bulb yet. I expect it to last several years.
1638517
Not long. Seems like mine was dead after 4-5 hours of use over several months. Never replaced the battery so I've been stuck with a white, plastic bulb for years now. Wouldn't purchase again.
816266
New CFLs turn on within a second with no noticeable warm-up period. Rest at times it depends on the ambient temperature. In my case, it achieve its full brightness in almost no time.
179013
Depends how long you leave it on. If you leave it on all night, probably a couple of weeks. It gets dimmer as the batteries die.
689773
It's "instant on", but, like all fluorescent lights, it will take a minute or two to obtain full brightness. The colder the temperature, the longer it will take. Note that the narrow base can be a great advantage in fixtures with limited space.
463797
The time greatly depends on the brightness of the screen. At a moderate intensity, I'd say 4 - 5 hours.
1549082
I am not sure? I know it is super bright when you first turn it on and then it seems to fade a bit... never too dark but not as bright as the first couple of minutes. ..
410706
it's different time and based at how long u charge them at station. at full charge it,s near 10-20 min. but manufacturer not installed uvf leds for fast charge, and u need near 30min to do it. wanna fast full glow, use UVF lamp
2080626
Yes there is a delay of about 1/2 second. I don't find that it's a problem because the light shows up bright immediately. Compared to a cfl bulb which takes a lot longer to turn on and to brighten up, the LED bulb is a great improvement.
1741028
I am not technically savvy enough to answer your question. However, I have two lamps and have always been able to get appropriate light by using one of the four settings. It's my understanding that the bulbs lst many, many hours.
1090984
Unfortunately, it doesnt appear to be long. This is my second set of bulbs, and only lasted 3 months. If you dont havd your reciept as proof for warrenty purposes, you're going to spend a mint keeping this thing going. So disappointed...
2133335
It sounds like you may have received a defective bulb. The one I have comes on at full power and does not change intensity or flash in any way.
1160288
Probably an hour or two... But it really depends how long the string of LED are... I can't really say for sure... They're not that costly so buy 'em and try 'em to see... If you have a dimmer they will last longer.
1029658
When the green flashing light is solid it is fully charged. It takes roughly 15-20 min for a full charge from 0 - 100, at least from my experience.
372014
I'm pretty sure that the minimum increment of on or off time is one minute. The maximum on time is dependent on your bulb life.