Torches - Page 2
How are you going to carry all this?Dynamite wrote:Hmm true.. how shall I power this fan? might need a spare tractor battery and a heatsink lol
Might as well bring in a tractor.
Or ask Panic if he's got any drainmobiles.
I've never heard about LEDs that did that.Joker wrote:Back to the P7, the torch seems to be getting considerably dimmer over time. I didn't think that these type of leds did this, any suggestions?
If the battery is one of those rechargeable ones, maybe it's life is running out quick per recharge? You should get at least a thousand cycles, but sometimes you get the dodgy ones. (For example, there were some Apple iPods that had that problem.)
That's the IC feeding it less current as the battery weakens, it's purpose is to preserve battery.Joker wrote:Back to the P7, the torch seems to be getting considerably dimmer over time. I didn't think that these type of leds did this, any suggestions?
One of the settings changes this so it stays bright till battery dies, but doesn't last as long. Eight half presses and then a full press or something, forget exactly how lol..
If you mean weaker even on new batteries, and it's under a year or two, then it's faulty and you should return it.
- may have to... then again it has been bashed around a bit in the drains.aydun wrote:That's the IC feeding it less current as the battery weakens, it's purpose is to preserve battery.Joker wrote:Back to the P7, the torch seems to be getting considerably dimmer over time. I didn't think that these type of leds did this, any suggestions?
One of the settings changes this so it stays bright till battery dies, but doesn't last as long. Eight half presses and then a full press or something, forget exactly how lol..
If you mean weaker even on new batteries, and it's under a year or two, then it's faulty and you should return it.
I never knew they had ICs to regulate the current. I thought the battery automatically put out less juice... Yeah... that's probably why I'm failing my Science...aydun wrote:That's the IC feeding it less current as the battery weakens, it's purpose is to preserve battery.Joker wrote:Back to the P7, the torch seems to be getting considerably dimmer over time. I didn't think that these type of leds did this, any suggestions?
One of the settings changes this so it stays bright till battery dies, but doesn't last as long. Eight half presses and then a full press or something, forget exactly how lol..
If you mean weaker even on new batteries, and it's under a year or two, then it's faulty and you should return it.
Is that an indication of how often it gets used?Titan wrote:My little cheapo $10 one has been kicking for over 2 years on same batteries without an issue
Lol its a backup. So it gets used here and there.
The headlamp and the Trustfire get used rest of the times.
Scarecrow of the Sydney branch of the Cave Clan.
Brand name (Led Lenser etc) of similar luminousity ratings cost over 4 times as much.
I've sold most of them already to friends & fellow explorers, but I have 1 or 2 left of each for anybody that is interested. And this is cost price due to getting a discount for the bulk buy. Some of you have already seen the 1800lm torch field tested in a drain.
Blakjak of the Sydney branch of the Cave Clan.
Haha I mainly know because of the promotional material that came with the torchMidget wrote:I never knew they had ICs to regulate the current. I thought the battery automatically put out less juice... Yeah... that's probably why I'm failing my Science...aydun wrote:That's the IC feeding it less current as the battery weakens, it's purpose is to preserve battery.Joker wrote:Back to the P7, the torch seems to be getting considerably dimmer over time. I didn't think that these type of leds did this, any suggestions?
One of the settings changes this so it stays bright till battery dies, but doesn't last as long. Eight half presses and then a full press or something, forget exactly how lol..
If you mean weaker even on new batteries, and it's under a year or two, then it's faulty and you should return it.
But yeah, there's a lot more to decent LED torches than you'd think. Just an FYI, a halogen car headlight on average is 1000 lumen.blakjak wrote:I just bulk bought a shitload of Cree T6 LED Ultrafire Made In China speacials (Superfire rip-offs) ranging from 1600lm ($20), 1800lm ($25), & 2000lm ($30). The 2000lm torches are almost as bright as a car headlight at full zoom, & for the prices quoted they come with a charger & 3000mAh Li-ion 18650 battery.
Brand name (Led Lenser etc) of similar luminousity ratings cost over 4 times as much.
I've sold most of them already to friends & fellow explorers, but I have 1 or 2 left of each for anybody that is interested. And this is cost price due to getting a discount for the bulk buy. Some of you have already seen the 1800lm torch field tested in a drain.
And since car headlights generally aren't as focused as torches, a less powerful torch 'should' appear brighter than a car headlight.
Still pretty good value, but don't trust the specs of cheap torches
You are right, but the car bean is not too much wider at the same distance.aydun wrote:Just an FYI, a halogen car headlight on average is 1000 lumen.blakjak wrote:I just bulk bought a shitload of Cree T6 LED Ultrafire Made In China speacials (Superfire rip-offs) ranging from 1600lm ($20), 1800lm ($25), & 2000lm ($30). The 2000lm torches are almost as bright as a car headlight at full zoom, & for the prices quoted they come with a charger & 3000mAh Li-ion 18650 battery.
Brand name (Led Lenser etc) of similar luminousity ratings cost over 4 times as much.
I've sold most of them already to friends & fellow explorers, but I have 1 or 2 left of each for anybody that is interested. And this is cost price due to getting a discount for the bulk buy. Some of you have already seen the 1800lm torch field tested in a drain.
And since car headlights generally aren't as focused as torches, a less powerful torch 'should' appear brighter than a car headlight.
Still pretty good value, but don't trust the specs of cheap torches
I have a lumen meter, I am not sure of it's acuracy though as the 2000lm torch makes the neddle go off the meter which has a 3k lm limit.
I have been a torch nerd ever since I got into the ubex game, I have put in years of research & testing in the urbex field to this. And I only bought these torches for mates & associates & am offering the few spare ones I have in case people need a practical torch to use while exploring. And I am offering them at cost price, the only profit I get is a few spare batteries lol.
Anyway, thanks or your heads up & insightful information.
BJ
Blakjak of the Sydney branch of the Cave Clan.
http://www.candlepowerforums.com/vb/sho ... men-output
I didn't know you had a lumen meter, you've never mentioned that. Did you just get it?blakjak wrote:I have a lumen meter, I am not sure of it's acuracy though as the 2000lm torch makes the neddle go off the meter which has a 3k lm limit.
I have been a torch nerd ever since I got into the ubex game, I have put in years of research & testing in the urbex field to this.
I'm also a torch nerd. I've been restraining myself from posting what I have in this thread though.
Scarecrow of the Sydney branch of the Cave Clan.
I've got a old analogue photography one, & a digital one on my solar powered keyboard.Scarecrow wrote:I didn't know you had a lumen meter, you've never mentioned that. Did you just get it?blakjak wrote:I have a lumen meter, I am not sure of it's acuracy though as the 2000lm torch makes the neddle go off the meter which has a 3k lm limit.
I have been a torch nerd ever since I got into the ubex game, I have put in years of research & testing in the urbex field to this.
I'm also a torch nerd. I've been restraining myself from posting what I have in this thread though.
Blakjak of the Sydney branch of the Cave Clan.
I like torches also, its ok to admit it fellas
http://www.ebay.com.au/itm/2000-Lm-Zoom ... 43ba15369a
http://www.ebay.com.au/itm/4000-Lumens- ... 19d9a3881b
One is 2000lm, the other is 4000 with the price difference $20 to $32. The 2000lm seems way more popular, but would the 4000lm be noticibly better?
Are you sure it is a lumen meter and not a lux meter? Lumens are difficult to measure because they represent the total amount of light. (Also favoured by torch manufacturers because they dont have to take into account the beam distribution which would make a throwy light appear brighter on paper than a floody light)blakjak wrote:I've got a old analogue photography one, & a digital one on my solar powered keyboard.Scarecrow wrote:I didn't know you had a lumen meter, you've never mentioned that. Did you just get it?blakjak wrote:I have a lumen meter, I am not sure of it's acuracy though as the 2000lm torch makes the neddle go off the meter which has a 3k lm limit.
I have been a torch nerd ever since I got into the ubex game, I have put in years of research & testing in the urbex field to this.
I'm also a torch nerd. I've been restraining myself from posting what I have in this thread though.
Lux is lumens per square meter and is more useful for measuring light for photography purposes. If you hold your 2000 lumen torch right up against a lux meter you will have, for example, 2000 lumens over a two square-centimeter area, which your meter would read as 5 million lumens per square meter (lux).
The lumen ratings for any of these eBay torches are heavily inflated. That being said, they're still much better than Maglites or any of your supermarket torches.benderz wrote:Can anyone offer some advice on either of these:
http://www.ebay.com.au/itm/2000-Lm-Zoom ... 43ba15369a
http://www.ebay.com.au/itm/4000-Lumens- ... 19d9a3881b
One is 2000lm, the other is 4000 with the price difference $20 to $32. The 2000lm seems way more popular, but would the 4000lm be noticibly better?
I would recommend the 2000lm one (I've got a similar sized one). You don't really want to use a torch too bright because it's better to use a dimmer light and let your eyes adjust to the darkness. And also the 2000lm one looks smaller and easier to carry around as well.
But if I was to recommend a torch, I would recommend that you get a head torch instead, makes climbing, etc much easier if you have the use of both hands!
I have a headlamp which comes in very handy for climbing and playing around with the camera and tripod but I didnt think it would throw out anywhere near the same amount of light. Looking at this sellers head lights, they seem to be comparable to the hand held.
I may just get them both....
Scarecrow of the Sydney branch of the Cave Clan.
Just received got the torch today. Much better quality than whatever you get in the shops for similar price. Will post some pics later that shows the difference between a $30 coles special and this one.
Do the cheap ebay ones give out a wide beam? I haven't seen many tests of them.
Can't wait for benderz test.
Just a harmless explorer. No need to waste taxes checking me
Here is a couple of pics of a direct comparison side by side.
1.
2.
Coles Torch, Test 1, taken on auto no flash settings.
3.
Cree taken on manual setting used in previous shot.
4.
Test 2
Cree test on auto no flash settings
5.
Coles special on same settings
6.
