6P + DX6090 early impressions

[katsyonak]

On 2 x SureFire SF123A the current draw is: 830mA

 

[Wattnot]

Maybe it's the inconsistencies that were talked about because others have tested the 6090 at 550ma with 2xCR123's which seems to meld right in with a 90 minute runtime. Remember, no matter how many cells you put in series, the available current is still the same. Most CR123's are 1300 to 1400 mah making 90 minutes seem genereous even!!

 

[Wattnot]

Okay . . . just received my 6090 drop-ins from DX. Only took a week . . . nice.

I have three but only tested one. I used two CR123's, one set close to dead and the other close to new and it was a hair under 600ma on both. Hopefully this will equate to a not too hot operation for my G2's, which is exactly why I chose this particular model.

For those familiar with using this in the G2, I have a question: I didn't run into any real issues . . . I took off the outer spring and dropped in in and it worked (it did not work or fit right with the outer spring installed). The switch worked better by my loosening the pill 1/2 turn out of the reflector. By better I mean it acts more like stock, coming on when you press and twist where you would expect it (as opposed to having to turn/press it all the way tight). I read where some folks had some minor fitting issues. Should I try it with the outer spring on but cut down and bent in a little (the stock outer spring has a slightly smaller diameter)?

 

[generic808]

That's what I did with my 6090 in a G2. I just used one turn of the large srping, bent and shaped with a plier to fit.

 

[dkelly]

Just got my 6090 dropin and I can't get it to even flicker in my G2. I have tried with and without the outer spring and screwing in and out the heat sink. I turned the flashlight on and pushed the dropin down, moved it around, completely compressed, slightly compress, and everywhere in between and still not a flicker. With the original Surfire module, as soon as I drop it down it lights.

I took an electrical tester and tested continuity on the surefire module by putting one probe on the inner spring and one probe on the outer spring and it indicated a circuit. When I tried the 6090, it indicated no circuit. Does this test prove the 6090 is defective?

Thanks.

 

[Alero]

I get my 1447 and 6090 mixed up in my head. I also get my 17670 and 18650 tests mixed up, but I'm fairly sure that I get a HUGE increase in run time from running a single cell. I think I get something like 3 or 4 hours of full brightness in a 6P and around 5 hours of full brightness in my cheap metal P-60 host on an 18650 cell.

 

[kramer5150]

Just got my 6090 dropin and I can't get it to even flicker in my G2. I have tried with and without the outer spring and screwing in and out the heat sink. I turned the flashlight on and pushed the dropin down, moved it around, completely compressed, slightly compress, and everywhere in between and still not a flicker. With the original Surfire module, as soon as I drop it down it lights.

I took an electrical tester and tested continuity on the surefire module by putting one probe on the inner spring and one probe on the outer spring and it indicated a circuit. When I tried the 6090, it indicated no circuit. Does this test prove the 6090 is defective?

Thanks.

I would take it one step further than that. Its stable to 18V... just get a 9V battery and touch the module spring to the 9V+ terminal and pill body to the 9V-. If there is no light then the module is a dud.

IIRC my 6090 had three separate QC inspection stickers on the bag, not sure what it was inspected for but hopefully some kind of functional test was part of the procedure.

Good Luck!!

 

[Bullzeyebill]

Why is the 6090 any better than thhe 1447. Both are constant current buck regulated drop-ins. You can add more voltage to the 6090, more than the 1447's 3.7-9 volts, but neither will regulate at 3 volts, more like 4.2+ volts. Is the 6090 running a Q5 as opposed to the 1447's Cree P4? My 1447 runs great and is cool, working fine in my G2Z with a metal bezel. Approximate lumens, using bounce with lightmeter, is around 100 lumens.

Bill

 

[Justin Case]

THats good to know. Any chance of measure it on 2 cr123s? 500-ishmah sounds like it would survive pretty well in a G2...

I checked two different DX6090s in the same SureFire 6P:

DX6090 #1, 810 ma for 2 SureFire CR123A cells, 560 ma, 2 AW cells
DX6090 #2, 780 ma for 2 SureFire CR123A cells, 520 ma for 2 AW cells

 

[lightinsky]

Hey Bullzeyebill does the 100 lumen reading you got on the 1447 DX cree p4 actual lumens or emitter lumens? Also do you know how many mA's it uses on 2 cr123A's since the DX website says it uses a 900mA board? If cree says a p4 uses 80-88 lumens per 350mA's how is this only getting 100 lumens? I have one and it seems to be at least 140 lumens. Thanks in advance for the incite.

 

[Justin Case]

Why is the 6090 any better than thhe 1447. Both are constant current buck regulated drop-ins. You can add more voltage to the 6090, more than the 1447's 3.7-9 volts, but neither will regulate at 3 volts, more like 4.2+ volts. Is the 6090 running a Q5 as opposed to the 1447's Cree P4? My 1447 runs great and is cool, working fine in my G2Z with a metal bezel. Approximate lumens, using bounce with lightmeter, is around 100 lumens.

Bill

The 6090 is $2 cheaper than the 1447.

 

[Vikas Sontakke]

I checked two different DX6090s in the same SureFire 6P:

DX6090 #1, 810 ma for 2 SureFire CR123A cells, 560 ma, 2 AW cells
DX6090 #2, 780 ma for 2 SureFire CR123A cells, 520 ma for 2 AW cells

That is very nice; notice how the current drops with increasing voltage. It is using efficient constant current driver rather than LDO converter.

Does this run on single CR123A or single RCR123A? If so, can you find the battery current?

- Vikas

 

[Justin Case]

That is very nice; notice how the current drops with increasing voltage. It is using efficient constant current driver rather than LDO converter.

Does this run on single CR123A or single RCR123A? If so, can you find the battery current?

- Vikas

Yes, I took the DX6090 that measured 560 ma (DX6090 #1) and inserted it in a SureFire 3P (single cell light) running with one AW protected cell, fresh off the charger (measured 4.19V). Current draw at the tail cap measured 530 ma.

Using the lux meter on a Mastech 8229 DMM, I measured a hot spot of about 6600 lux at 1 meter for DX6090 #1 with 2xAW cells, vs about 3400 lux at 1 meter for the single AW cell case.

The lux measurements are somewhat ad hoc. It was handheld so the 1 meter distance could be +/- a couple of cm. And then finding the peak was an exercise in random walk. So I wouldn't try comparing the numbers with any one else's measurements. But my measurements did seem to have a reasonable degree of repeatability, so I think that a relative comparison of 6600 vs 3400 lux is ok.

Interestingly, I measured 2400 lux for a Gladius, which seems to agree reasonably well with other measurements on the Internet.

It was my impression that hot spot lux readings were rather sensitive to which SureFire/DX6090 combination I was using, whether I used CR123A primaries or RCR123A secondaries, how much I may have unscrewed the pill to get a good bezel fit, etc. Most notably, the combination of an old SureFire Z32 weaponlight head (which uses a Lexan window) combined with 2xAW cells gave the brightest hot spot readings. Unsurprisingly, an old beat-up 6P bezel with an original Lexan window gave the lowest readings.

 

[astra]

Why is the 6090 any better than thhe 1447. Both are constant current buck regulated drop-ins. You can add more voltage to the 6090, more than the 1447's 3.7-9 volts, but neither will regulate at 3 volts, more like 4.2+ volts. Is the 6090 running a Q5 as opposed to the 1447's Cree P4? My 1447 runs great and is cool, working fine in my G2Z with a metal bezel. Approximate lumens, using bounce with lightmeter, is around 100 lumens.

Bill

If got both and put them both in two maxfire lx's. Here are the differences I saw (sorry not real numbers, just impressions).

Taking them outside separately, I thought they performed pretty much the same. However, I finally (they shipped separately) took them outside at the same time and I could see a difference. The 6090 would actually throw just a bit further than the 1447. Not much difference but one I could tell by switching the lights off and on while pointing across the road at the neighbor's pasture. However, there was a huge difference in the heat generated. The 1447 was much cooler. The 6090 warms up pretty quickly, so for a non-metal light I wouldn't run it very long. If I get another, I'll get another 1447 and see if I can put the 6090 in a legend LX (all metal).

Hope that helps.

Danny

 

[KDOG3]

Ugh. 800+mah is too hot for G2...dang.