CREE XP-G2 S2 1-mode Drop-in Module

Other Types of Lights LED Light Bulbs
1

Looking for a CREE XP-G2 S2 1-mode Drop-in Module but only finding R5 3-mode versions. Anyone know where I can buy this particular drop in module?
Thanks

2

Sorry, I have not seen one. Could you post more of your requirements?

  • the cells you intend to run it on
  • the current you want it driven at
  • the price range you are in (can you afford a custom one? there are members here and on CPF that can probably take care of you in that case)
3

http://www.customlites.com/P60-D26-Cree-XP-G2-28-6-volts-P60-XPG2.htm

4

18650 x 1
1500 mA
2 hour runtime
< $26

5

Thanks
Anyone cheaper (and obviously of less quality)?

6

You’re fudging a little bit on those numbers. I doubt that you’ll get 2hr runtime on one 18650 at 1500mA, but you might get close. Price is also an issue, you can’t pickup what you need from a custom builder at that price.

Do you need low voltage protection?

If you need LVP you’ll be forced to have a member here flash you a 1-mode driver unless you want to figure that out yourself (search, there’s plenty of info). You can start with something like a Solarforce XP-G dropin and swap the LED for the XP-G2 S2 you want, then swap the driver for a single mode driver from RMM or someone else here who flashes for others. Getting the driver through RMM you should be looking at around $8. The SF dropin is $13.50 shipped. The XP-G2 S2 is $4 shipped. So it’s possible to hit your pricepoint if you assemble it yourself.

EDIT: and in case you didn’t notice, the customlights dropin seems to be run at 1A.

7

Order a drop-in ($2.99) from Mountain Electronics, select custom build & test option ($3.75), order XP-G2 2S 1B 16mm ($6.79), order Qlite driver ($4.20), flash Star FW ($1.25) and specify 1 mode, remove 4 chips ($0.50)

Sub total: $19.48

BLF coupon: -0.25

Postage: ~$2.04

Total: $21.27

http://mtnelectronics.com

You can save ~$7 if you can DIY and wait for overseas shipping.

8

Hot dog!

9

If I run one Panasonic 18650 3600mAh battery, shouldn’t I get 2 hours continuous run time?

10

Meh. Where are you getting your Panasonic 3600mAh cells?

Vf is about 3.2v we can assume, drop out on the 7135’s is 0.12v, the diode adds 0.25v of drop, so you need 3.57v from the battery. With protected Orbtronics I think you’d make it to nearly 1.3hr at full blast.

EDIT: and honestly, I've forgotten what happens when you hit Vdropout on those 7135s. They may just keep knocking 0.12v off and feed straight through, in which case you'd just get a lot of dimming. Or they may do something funny and you get really severe dimming.

11

Continuous? Yes. Constant? No.

12

Longer run time from the 3000mAH LG ICR18650D1, I think.

http://lygte-info.dk/review/batteries2012/LG%2018650%20D1%203000mAh%20(Pink)%20UK.html

Perhaps even longer from the 3200mAH LG ICR18650E1, not tested by HKJ yet.

13

$1.99 empty P60 drop-in (fasttech)

14

The above and this
”
3V~5V 4* AMC7135 LED Flashlight Driver Circuit (Generic) “:http://www.fasttech.com/products/0/10001751/1127404-3v5v-4-amc7135-led-flashlight-driver-circuit-gener
even has reverse protection (but not low battery protection)

And this emitter and star

Solder it together and viola

15

Guys,
I appreciate all of your DIY information but I’m in over my head at that point. Don’t get me wrong, I’d love to be able to assemble my own drop ins, but I wouldn’t know where to begin or what tools I’d need to assemble one. I’ve stumbled up to this point after 6 months of trying to put a concept into action. I’m trying to build a hand held and submersible light for flounder gigging. I’ve mastered all the obstacles to this point and the last item on the list is to have a light that will illuminate sufficiently underwater to see the flounder on the bottom while wading in 2-3 ft of water and last long enough to make it worth while. Size and weight limitations define the 18650 battery as the source and the design allows for one spare battery.
This is where the rubber meets the road. Choose the right P60 D26 drop in to get maximum illumination for maximum run time. I don’ want to have to carry half a dozen batteries for a four hour search.
Thanks

16

We’ll help you succeed in filling that drop-in :wink:
FT also has a nice low priced host, which will probably be waterproof enough, if it’s fitted with the right O-rings and a bit of lube…
(Maybe I’m wrong…)

For max runtime a medium mode would be nice too.
You probably don’t always need full power(consumption).

Another thought:
Colour temperature.
That XP-G2 S2 is cold…
Isn’t that a drawback under water?

17

Not if the water is cold too.

18

Wow, if you can see a still flounder on the bottom I’m amazed. Those things are crazy camouflage.

19

You bet. So you look for its outline in the surrounding sand. Ideal conditions require clear water, little if any wind, no moon, and good eyes.

20

I appreciate any and all help. My background is Medical, not electronics.
I already have a waterproof compartment for the drop-in composed of a PCV coupling, a clear Acrylic lens, O-rings, adhesive/sealant, silicon lube, etc. but am open to any improvement.
I’m told by others with designs that require external wiring to a battery pack that Cool White is the color or tint to use, but again, if that needs to be challenged I’m open to suggestions.
Your suggestion for an additional lower lumen mode(s) makes good sense but I haven’t come across many 2-mode lights, generally 1,3, and 5, but probably not looking in the right places. My sources of information to this point have been BudgetLight, Candlepower, and Cree. I’ve also used Amazon, DX, Brinyte, Fastech, Lighthound, Solarforce, and CustomLites for information and bought some of their drop ins for trial and error OJT.
Any and all help and/or suggestions is appreciated.
Thanks