How fast does the batteries drain? I read that the bulb lasts forever, but was wondering how many hours the batteries would keep it going.
316033
I found that it depends on the light. I have about 10 of these book lights (love them, btw). Some of these lights last about 30% longer than others (with batteries from the same package) so there may be some quality control issues at play. Important: The light does dim as the batteries drain (sorry, adunn, my experience doesn't agree with your answer). So even though you still have light, it's not the same bright light as when you started. After reading at least 60 novels by these lights, I'd say that you get bright light for perhaps 5 to 6 hours. You get moderate light for another 3 to 4 hours. At that point, the light is low. Yes, the page is still lit, but it's greyish, not bright. If your eyes have adjusted, or you're young with fabulous 20-10 vision, you're probably fine for another 6 hours. But me, I'm old and decrepit and can't finish the novel without having to change out the batteries for a fresh set. Also, keep in mind that temperature also affects battery life. Colder temperatures will drain them faster. I lose at least 4 hours of useful light at my mountain cabin compared to my valley home with these lights. Hope this helps! - tkh
316034
if you leave it on 24 hours straight, like i did, the battery drains considerably fast haha
316035
I bought this a three months ago and the battery is still working like new. I provably use it around 3 to 5 hours per week
316036
This is a great light. My wife uses it regularly. My guess is it has 40 hours on it and there are no signs of dimming.
1866347
My batteries will last approximately eight to ten weeks with my normal usage. That usage will vary with each individual. I used mine hunting, working on my old car, getting the dog in after dark. The batteries are only fully charged at the beginning so don't expect them to be 300 Lumen all the time. I have really enjoyed using this head lamp.
360763
I have used it only for a few hours and so far have had no battery issues. The LED bulbs draw very little current and the batteries should last for quite some time.
245047
I have to say that I don't know precisely. My experience with battery lights this bright is that the burn time at full power will not be long, something less than an hour. I have had it going full for possibly 30 minutes without a decrease that I noticed.
434389
With proper use (i.e. charging during the day and operating during the night), the batteries should last longer than 2 years. Like any rechargeable battery, over time the charge may not last as long as with say a mobile phone, but the lights are on periodically so I have not noticed any degradation over the 2.5 years I have had 4 of my lights installed. Finally, the bulbs are actually 60 LEDs which are attached to a circuit board and cannot or do not need to be changed. The operating life of the LEDs are about 20,000 hours far exceeding the life of the light.
891010
I bought mine from bulb direct. It lasted 3 days. They have a good return policy. They shipped a new one and it is working fine. Hope this helps
1205895
Hi Ted, The batteries don't seem to last very long. I have them on for at least four hours during my shows and I have to replace them every second to third show if I want the brightness, I do have then on full power. Hope this helps. Barbara
608296
Haven't done that kind of research on the device, but to prevent draining, you could always unplug the battery from the light. Mine has been unplugged for months. I have yet to charge the battery since first receiving it, but connected the light yesterday and it still as bright as ever and runs all four phases without issue (high, low, intermittent flash, off).
1745555
They draw considerably less energy than a standard bulb. I have not had any issues with the battery other than it just being an old battery.
96807
The BlueMD bulb is rated to last 10,000 hours, which equates to about 30,000 treatments at 20 minutes each. We generally put the life expectancy of the bulb at around 5 years, but it will obviously last much longer if you go by the hour rating on the bulb. Also, should you ever need a replacement bulb, we sell them to existing customer by contacting us directly. Thanks!
1227691
The bulb stays on for 3 minutes. They are made in China most likely. I have two, one in laundry room and one in garage. These bulbs are worth every dime.
357193
That depends on the setting. I've never had it on long enough to go out. I usually use it on the brightest setting and have had it last >90 min without dimming. I believe the manufacturer states that it can last 2 hours on that setting. Lower settings will obviously last longer.
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.
2228833
I'm not sure of the wattage, and have not had any of the problems others have had. My electric bill hasn't changed much so I think it's doing what it's supposed to. Also, My bulb is still going strong after months of daily use. It is at full brightness as soon as I turn it on. My light is on from 7am until 5-6pm 5days a week. Occasionally it's off for 30 min here and there, but it's always as bright as the day I got it. Luv luv luv my bulb.
2081341
Michael, The battery last for 50 hrs on constant lighting mode and 150 hrs on flashing mode. I hope this info help. Good day.
473056
I'm not sure what gives, mine is still going strong since August at 16 hours a day....make sure that you can dissipate the heat from the bulb; ie: are you using a shroud around it? That would make it overheat maybe....or make sure your connections in your receptacle are set up right, ....or check to see if it being screwed in too tightly....also, keep your fingers off the bulb....oil from your hands can make it blow sooner than you would want it to. Hope that's a help.
600393
It has 5 small different colored lights built in that automatically go out after about 15 minutes which you can turn back on again uses batteries I don't think the bulbs are replaceable but I have had these type of lights in items that lasted years and years. I think replacing the batteries would be the only thing and they last a long long time.