Being they are so much brighter, do they still draw same battery power than less bright LEDs.?
1342698
Though I didn't actually measure the watts draw I would estimate they draw considerable less power than a normal bulb and puts out plenty of light and also very little heat. Led,s use so little power anyway, it's just a matter of just finding one that is a decent price while performing about as well as a standard incandescent bulb. Color, light output, price, and heat output, would be the most important things to look for.
443067
In my experience, if you put them away fully charged, I came back over a month later and they still had a full charge. I always leave the charging battery in the charger for a few extra hours after the charged LED turns green. Seems to work well for me...
340752
If you are lighting LED's in direct sun only with no batteries and the LED's you are using will run on 3V, then typically LED's draw 20mA, so it would light 3 of them if the above assumptions are true.
857364
The bulbs pictured are as bright as any 75 watt incandescent bulbs that I had previously been using. It is hard to compare brightness by using watts because these bulbs use so much less current than the old ones. It is best to try and see the Lumens output as a direct indication of brightness. I have replaced all the most used lightbulbs in the bathroom and kitchen with LED's and they seem to be much brighter than the old ones.
1312402
No. They're much bigger. They are 3.7 volts compare to AA which is 1.5 volt. Higher mAh too.
1338353
Even if it were actually "lit" by LED, the amount of power used by a single, tiny LED is NOT enough to drain the batteries in any measurable period of time. We're talking at most, a few milliwatts (thousandths of a watt).
194578
Not sure of the reason for the variance. From what I understand, if you use rechargable lithium batteries, you'll achieve maximum lumen output.
184357
LED's can be dimmed, and these should be able to be dimmed... but in my application they are either full power or off.
1596769
I use the 18650 batteries , And yes I do believe there is a difference between the two batteries I think its brighter with the 18650
887808
The tradeoff for super bright output is lessened run time...On a full charge, and if use continously you get less than an hour and the unit gets pretty warm...I always keep a spare battery with my if I amusing on project survey or such...
940680
In my experience these batteries are just as good as the originals. I haven't noticed any power difference whatsoever.E.
1896386
Yes. On the batteries there is a button you push that lights up 3 green LEDs for full charge, 2 LEDs for 1/2 charge, 1 LED for minimal battery life left. HOWEVER, this feature died on one of the batteries after exactly 31 days. I traded in the 20v set after 32 days and went back to the 18v set.
1549526
I don't know the exact number but they use very little draw and are incredibly bright I really like mine I have the 36 and 48 LED panels in my truck cab and camper top I've left them on for hours with no noticeable drainage of the battery. Hope this helps
337328
I have just cause I had them from another light that I killed and it didn't seem to make a difference. I keep 18650s in mine just because of how much I use it around the house. Just bear in mind that it is NOT 1000 lumen by a longshot.
171385
They are somewhat less bright than a 5W incandescent bulb.The first LED bulb that I found was less bright & I replaced it with one of these, because I wanted more light.It might have been a Fiet BPC7/LED.
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.
612168
I have four of these lights on my boat and they work just fine. Brightest lights I've ever had on the boat and they draw hardly any current.