expired Posted by Lead12 ā¢ Sep 10, 2022
Sep 10, 2022 12:16 AM
Item 1 of 8
Item 1 of 8
expired Posted by Lead12 ā¢ Sep 10, 2022
Sep 10, 2022 12:16 AM
Eveready 200 Lumens LED Camping Lantern
$5.35
$11
51% offAmazon
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This is a bit of data for those interested...this will NOT put out anywhere near 200 lumens for anywhere near 80-100 hours. Very efficient LEDs can output 150-200 lumens per watt or slightly higher, and the high end is very new, expensive, and rare. Even if this were a rare LED emitter at 150 lumens per watt, that's (at minimum) 1.33 watts, which even if running off 4AA batteries, would be .22A (220mA) at 6V (assuming they cells are arranged in series). The typical AA has around 2500mAh capacity, so that's around 11.36 hours at 200 lumens, in a realistic BEST CASE. If you used super expensive disposable lithium AAs that have a capacity of around 3000mAh, you could increase that to a little over 13.5 hours.
It may be a fine lantern, but the advertised numbers are COMICALLY MISLEADING. It may output 200 lumens or more, but not for 80-100 hours...and it may output light for 80-100 hours, but not at 200 lumens. With 4AA batteries, it's one or the other, but not both.
If we work the math the other direction, that works out to around 31.25mA for 80 hours at 6V (4x2500mAh) AA cells...which at 6V is around 0.1875W, or around 28 lumens for 80 hours, best case.
Just be aware before you buy.
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Don't think I'll ever use it though.
Btw, Eveready is a child company of Energizer, which makes batteries.
The coupon was right below the price on a desktop browser.
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Our community has rated this post as helpful. If you agree, why not thank luckydog97
This is a bit of data for those interested...this will NOT put out anywhere near 200 lumens for anywhere near 80-100 hours. Very efficient LEDs can output 150-200 lumens per watt or slightly higher, and the high end is very new, expensive, and rare. Even if this were a rare LED emitter at 150 lumens per watt, that's (at minimum) 1.33 watts, which even if running off 4AA batteries, would be .22A (220mA) at 6V (assuming they cells are arranged in series). The typical AA has around 2500mAh capacity, so that's around 11.36 hours at 200 lumens, in a realistic BEST CASE. If you used super expensive disposable lithium AAs that have a capacity of around 3000mAh, you could increase that to a little over 13.5 hours.
It may be a fine lantern, but the advertised numbers are COMICALLY MISLEADING. It may output 200 lumens or more, but not for 80-100 hours...and it may output light for 80-100 hours, but not at 200 lumens. With 4AA batteries, it's one or the other, but not both.
If we work the math the other direction, that works out to around 31.25mA for 80 hours at 6V (4x2500mAh) AA cells...which at 6V is around 0.1875W, or around 28 lumens for 80 hours, best case.
Just be aware before you buy.
This is a bit of data for those interested...this will NOT put out anywhere near 200 lumens for anywhere near 80-100 hours. Very efficient LEDs can output 150-200 lumens per watt or slightly higher, and the high end is very new, expensive, and rare. Even if this were a rare LED emitter at 150 lumens per watt, that's (at minimum) 1.33 watts, which even if running off 4AA batteries, would be .22A (220mA) at 6V (assuming they cells are arranged in series). The typical AA has around 2500mAh capacity, so that's around 11.36 hours at 200 lumens, in a realistic BEST CASE. If you used super expensive disposable lithium AAs that have a capacity of around 3000mAh, you could increase that to a little over 13.5 hours.
It may be a fine lantern, but the advertised numbers are COMICALLY MISLEADING. It may output 200 lumens or more, but not for 80-100 hours...and it may output light for 80-100 hours, but not at 200 lumens. With 4AA batteries, it's one or the other, but not both.
If we work the math the other direction, that works out to around 31.25mA for 80 hours at 6V (4x2500mAh) AA cells...which at 6V is around 0.1875W, or around 28 lumens for 80 hours, best case.
Just be aware before you buy.
And not to nitpick, but the description states that the lantern will provide bright, uniform lighting for UP to 100 hours, not that it will output the 250 lumens for the entire 100 hours. Anyway, one reviewer claimed that the lantern lasted over 144 hours on just 2 AA batteries [amazon.com], albeit very dimly toward the end, so who knows how 4 AAs will perform. In any event, for extended power outage situations, I suspect that someone who has this light and bulk AAs will be pretty happy compared to someone with a bunch of high powered rechargeable lights that they can't plug in to recharge.
Need a camping lantern is 200 enough?
Tempted to go for the rechargeable even though it's 3x price
Need a camping lantern is 200 enough?
Tempted to go for the rechargeable even though it's 3x price
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