Have you left the lamp on for 7 hours? Is it bright enough for continued use as a desk/reading lamp? Does it take longer to charge as it gets older?
589109
I have left it on for extended periods but have never timed it. It is guaranteed to work for 3 years at above above normal use (9 hours a day for three years) with no change in lights or battery. It has a dimmable dial switch that allows for every level of brightness between off and ultra bright. You can see it in action at http://www.youtube.com/watch?v=Usws6I8e5n4 Thanks for your question, I hope this helps! Don Carter, CEO DTC LifeTools
237073
Like the others have said, it does NOT have an indicator to tell you when it needs charging, other than a dimming of the light output. The company does publish a table that tells you how many hours a charge will last, depending on what light setting you use. If you use the lowest light setting, like I have started to do, it lasts 10 hours!
2024359
Um..... It should never be on unless charging. You did not charge it when you first got it did you? It comes charged. From then on it only takes a two hour charge. If overcharged and battery ruined the light will stay on.
1787949
Hey Derrick... I charged it when I received it on April 30. I use it on average 2-3 hours per evening. I use the back light function every 30 minutes or so and the unit is in standby during the 2-3 hours of use. I turn the unit off each evening. I have not yet had to charge the battery.
2227156
I would recommend you make sure you are using the eco mode. I got over 4300 hours out of my lamp (bought it in 2011 and it's my only "tv")and it didn't even go bad. I knew i was gonna be gone for over a year so I changed the bulb for my wife. I bought a cheaper one just to check and so far it has over 1700 hours on it. might be worth a shot. make sure when you install the lamp you don't touch I the glass with your fingers. Epson Replacement Lamp For Pc/hc 6100/6500ub 7100/7500ub
1995489
With this type of battery, the key is to discharge it before recharging. I've got well over 400 "burn hours" of my lamp now and it still holds a charge perfectly. When it's fully charged, I unplug it and burn it for a while, then let it sit until the charge is almost exhausted.
1156533
I've had my lamp for 6 months. I've never tested the battery for time duration, but it definitely longer than 2 hrs. If I use it a lot, I plug it up whether it needs it or not, just so I'll have it bright for the next use. Also pay attention to the recharge instructions. It's pretty tough, I use it for MIG welding as my shop isn't well lit and my vision isn't as good at 60 as it once was... HTH, Russ
896851
I always leave it on charge overnight. Sometimes a little longer, and it seems to be ok. It is a very powerful light, but the instructions say to only turn it on for 30 seconds at a time, I guess it's because the drain is high, and it gets hot. So, for a quick look around, it's great. But not for continuous use.
1190871
I am not good at judging lengths of time, however it stays on quite a while maybe 15 - 20 seconds. If it goes off as soon asyou get in front of it will come of it the lamp comes back on. I LOVE mine.
1923436
So far, one battery has lasted more than 20 reading hours, plus a few more after I fell asleep. It's a good lamp.
1787947
Hey Derrick...I charged it when I received it on April 30. I use it on average 2-3 hours per evening. I use the back light function every 30 minutes or so and the unit is in standby during the 2-3 hours of use. I turn the unit off each evening. I have not yet had to charge the battery.
896854
I have left mine plugged in for 2 weeks or so and it still works good. I know it says not to charge over 8 hours, but I have and it has always worked for me. I keep it at my 2nd home and don't remember to unplug it from time to time, but, it does still work. Probably not the best for it but....
118230
I'm sorry. I can not answer this question at this time. The lamp has not been used on an hourly basis . . yet.
2028874
The light source is not a bulb; it is an LED which is permanently wired in. Keep in mind, LED's are Solid State devices which means they can have a lifetime of over 50,000 hours. That would give you over 27 years if you used it 5 hours per day. In my opinion, there is no need to make it replaceable because that would just create another place for it to fail. Because it's a Solid State device, if an LED ever does cease giving its light, it's usually something other than the actual LED, i.e. the power supply or the connections. If this desk lamp ever fails, it won't be at the LED.
2260328
I have no problem with my lamp. I use it mostly with the USB port on my computer. If you hold down gently on the on/off switch the lamp will dim. Tap the on/off switch and the light will go out, tap the on/off switch again and it should come back on in bright mode - at least that is what mine does.
209647
The LED light source is not user replaceable. It lasts a long, long time. If the LED light source fails, the entire desk lamp would have to be replaced.Regards,LEDwholesalers
933463
You may leave it on as long as the juice is on and the lamp does not burn out. Mine has been working perfectly for about 5 months with great light. You would need a timer attached to the power cord since the unit only has 3 fixed settings.