Popular bulbs current draw; SF & other brands, incl hotwires

[tomcat017]

Wow, great thread! Thanks for putting this together. Some lumens factory data would be great if anyone has it

 

[cue003]

is it safe to assume that any bulb (including SF) that would run on 2x18650 will also work on AW "C" batteries in a 2xC configuration?

Thanks.

Curtis

 

[LuxLuthor]

is it safe to assume that any bulb (including SF) that would run on 2x18650 will also work on AW "C" batteries in a 2xC configuration?

Thanks.

Curtis

I'm almost sure it would be. The voltage is the same, the protection circuit cuts off at about 5.2 to 5.5A draw from both batteries (assumes newer PTC of 18650). Only main difference is more energy stored in C Li-Ion (3300mAh vs. 2200 mAh in 18650)

 

[fivemega]

I'm almost sure it would be. The voltage is the same, the protection circuit cuts off at about 5.2 to 5.5A draw from both batteries (assumes newer PTC of 18650). Only main difference is more energy stored in C Li-Ion (3300mAh vs. 2200 mAh in 18650)

Voltage is same under NO load but when it comes to higher current draw, smaller batteries have serious voltage drop than larger cells.
Some people run MN21 with 2x18650
Would they take a chance with 2 "C" ?
Or with 2P 2S 18650 ?

 

[LuxLuthor]

Yeah, good point depending on the draw....the smaller cells may not hold up to the demand. Thanks for that reminder.

 

[vandrecken]

A couple of extra figures from playing about with the Osram IRC lamps this week. Nothing new :

Beyond Li-Ion
OS 64432 IRC 12v 35w - 3.95A/19V peak hot off the charger (15x1.4Ah IB1400 2/3A NiMH plus 3 dummy cells to fit a Fivemega tri bore 3D mag)
And on the way with partially charged cells, this lamp drew 3.3A @ 14v, 3.6A @ 15.4v, 3.8A @ 16.3v

OS 64440 IRC 12v 50w - 5.2A/19V direct drive (16x1.4Ah IB1400 2/3A NiMH plus 2 dummy cells to fit a Fivemega tri bore 3D mag) could be good for 3,750 bulb lumens if these lamps are able to make the 38+ lumens / watt i've seen suggested.

Cheers.

 

[Brozneo]

Re: Help compile a list of Current Draw for popular globes

Excellent thread - exactly the answers I was looking for!

THANKS!

 

[gratewhitehuntr]

Assuming the current draw values are right, does this mean I can run a ROP LE with two cells that handle 4 amps of current draw?

I've run the ROP LO on 2 Ultrafire 18650 protected cells.

I have no idea of the run time but it was barely distinguishable from my WF-500 without a side by side.


Tonight I will try 4 X UF 18650 to run the ROP HI.
I intend to two two packs of two in parallel.

I'll let you know.

 

[gratewhitehuntr]

I ran two parallel series of 18650's tonight and it lit the ROP HI with 1 click every time.
I haven't done any resistance fixes to the light other than a little dielectric to the tail cap.

Didn't run them into the dirt but it did get about an 8 minute run with only slight dimming.

These are 4 Ultrafire 18650 2400 mah protected cells.
My "battery pack" added resistance I'm sure, since it was made from tinfoil, lamp cord, drywall screws and some large dowel rod.


but whatever, it worked

NiMH D cells will be here wed

 

[LED61]

This list needs to be updated with the Lumens Factory D26, D36, and new M6 bulbs. Anyone volunteer ?

 

[Rommul]

I should be able to update the LF D36 as well as the WE 9D 9.0V as well as what I recall is a WE12 bulb.

These are all D36 bulbs.

 

[Rommul]

WE 9V 1.33A
WE 12V 1.30A
LF EO-9L 2.33A

The 9v bulbs were tested with 2x17670's

 

[rikvee]

Re: Popular bulbs current draw; SF, LF & other brands, incl hotwires

"Last edited by rikvee; 08-04-2006 at 08:46 AM."

That's what the first page had under it for 4 years, high time to update before the fun is all over......

- thank you molite for your nice words in Oct '06, and YES, I will attempt to bring this list up to date, with everybody's help I hope!

- Paladin, thank you, it's in there!

- nightstalker101, Ctechlite, LuxLuthor, tomcat017, Brozneo, thank you for the encouragement!

- LED61, I'm on to it, sorry about the wait....

- Rommul, thank you, the Lumens Factory bulbs are now on the list, still looking for the current draw figures for most of them!

- fivemega, thanks for stopping by in 2007, man, I LUV your work, still treasuring your red ano 2 1/2C's with 1274's in them!

I hope this current draw list will again become useful, please help me fill it in!

lovecpf

 

[rikvee]

The list on page One of this thread is now a lot more comprehensive, still, if anyone wants to contribute please post your figures here, and I'll add them to the list on page One.

Could do with some more Lumens Factory measurements.

The way to measure current draw is with a multimeter on the AMPS or Ampere scale (make sure its in the right range, typically between 1 and 5 whole Amperes), measured between the battery (-ve)tail end and the body of the light, simple!

The result is a quick overview of the whole world of Incandescent Lamps here on CPF, all good fun!

 

[rikvee]

On my computer the master list on the first page of this thread is now about 3 screen heights tall;
still, this is the most compact way I know to list all the bulbs that play a part on CPF.
If you have any suggestions about omissions and/or improvements, please post them in this thread.

A handy guide on how to measure current is here; we still need more data on many of the Lumens
Factory lamp assemblies.

 

[[email protected]]

Hi rikvee,

Most of our lamp specs could be found on our site under "Specifications", you can find the current draw of them there.

Cheers,

Mark

 

[bigchelis]

Hi rikvee,

Most of our lamp specs could be found on our site under "Specifications", you can find the current draw of them there.

Cheers,

Mark

Mark,

I looked at your website for a while now and I can't find the current readings. I do see the runtimes with particular cells and the disclaimer about IMR lamps, but no tailcap readings anywhere.

 

[Fusion_m8]

LF D26 SR-9: 1.19A(2xAW16340 protected), 1.21A(2xAW17500 protected)

LF IMR-M3T: 3.13A(2xAW IMR18650)

LF HO-R5: 3.03A(2xAW IMR18650), 2.88A(2xAW18650 2200mah protected)

 

[mdocod]

On the LF website, hit "specifications" link on the left, then pick a product category, the table on the BOTTOM of the page has current draw of each lamp.

like this page:
http://lumensfactory.com/d26_series_specification.htm

I have a sample of most of their lamps so if anything is in question let me know. I have most of the figures in my head but can test as needed.

Eric

 

[rikvee]

Thank you Fusion m8, added them to the list, thank you bigchelis,
I also had trouble finding the current draw from the LF web site.

Thank you mdocod for the link and Mark at LF, thanks for providing
us all with more choices in incandescent lamp assemblies!

The LF web site doesn't yet have a spec list on the IMR bulbs,
still looking for the Amp draw on the IMR-9L and the IMR-13

Greetings, Rik van der Velde down under in Western Australia :thumbsup: