MTN Electronics: LEDs - Batteries - Lights - Chargers - Hosts - Drivers - Components - 1-Stop-US Source

lol - I really try to keep up with this thread daily, but sometimes theres 80 new posts since I last saw it.

Makes sense…. I already have a R4 4000k s3 triple from Richard - it has a great neutral tint that is on the “pinkish” side (rather than yellow or brown).

I should try a broad spectrum version - good idea :slight_smile:

I have offered it in the past and I will offer it again, now that I have more LEDs. The 219B doesn't take as much of a lumens hit as the older Nichias did.

A little while back, I did some figuring on what would probably work for this sort of thing:

If it helps, this is what I was thinking of doing. But I was also considering using a 4* tint instead of 5*, to make the result slightly cooler in color temperature.

BTW, if you do a wide-spectrum light, it’s probably a good idea to make it floody. This minimizes the rainbow shadows and maximizes the color vividness of the objects you light up.

Thanks for the info toy keeper :slight_smile:

Also, I’m hoping to build a spectrometer soon, which should provide some interesting details about the difference between a Nichia 219 and a tint-mixed multi-emitter Cree light. Both look visually very nice, but I’m guessing the Nichia has a pretty smooth spectral curve while the multi-tint light probably has several spikes.

Richard, is the triple xp-g2 spacer you sell the same one you use in your builds? How solid is it (how much is hollowed out in the center, if any)?

I apologize if this has been brought up before. :slight_smile:

The S3 EDC triple doesn't use this spacer, just the S2 and S6 (normal length) if the customer requests it. On the S3 I fill the pill with solder, sand it flat, then reflow two copper MCPCBs together for the spacer.I can't remember the exact diameter used, but it is machined from solid bar stock and the hole in the middle is enough to fit two 22 AWG silicone wires through but not much more.

Richard, Your new tax system keeps adding tax to my order (I’m not in Washington or Utah).

2 small flat rate boxes with 18650’s inside. Also got a backup proprietary Li-ion for my camera before we go on vacation. So there were 4 Samsung 25R and 8 Panasonic NCR18650B plus the camera battery. Also 3 other packages. A small 14500 sized Maxtoch in SS and an extension for my new TK61, along with some Kester soldering paste.

Why is all this important? 13 Li-ions in my mailbox, raining, and the mailman stuffed so much in there the door would’t close! The packages were wet and crushed and looking like easy pickins to everybody that drove down our road! Crazy mail carrier!

No harm though, so I guess no foul. Those little plastic boxes come in really handy in these situations…

Thanks Richard! :slight_smile:

Clearly you're going to need a bigger mailbox so you can fit more flashlight gear in there in the future. Do I see a mailbox mod thread in the near future?

I got the $40 kit: http://spectralworkbench.org/
and have posted some spectra from various LEDs, e.g. SpectralWorkbench

Back in stock:

  • 18 AWG Premium Silicone Wire
  • 14x6mm Black Silicone Boot
  • 20MM & 42MM AR Lens
  • 20MM Forward Clicky w/ PCB and Spring
  • Cree Multi-Color XM-L
  • XM-L2 3C on 16mm Noctigon
  • XM-L2 4C on 14mm Aluminum
  • XM-L2 U2 1D Bare LED
  • XP-G2 R4 5A2 Bare LED
  • Gold Plated Spring B
  • LC-2C Driver
  • 3XP MCPCB
  • P60 Dropins - OP and SMO Reflectors

New:

  • Cree MT-G2 M0 4000K on 20mm Noctigon

Lower prices:

  • 18 AWG Premium Silicone Wire ($0.20 less)
  • Triple Nichia 219B on Noctigon ($2.00 less)
  • Triple XP-G2 2B and 3C on Noctigon ($2.79 less)
  • XP-G2 R5 3C on 16mm and 20mm Noctigon ($1.50 less)

At the beginning estimation, or at the end when you actually go to check out? For some reason it keeps on trying to add tax at the beginning, but when you get to the bottom of the page (before you actually check out) the tax will be correct.

Also, if I click estimate shipping and tax initially it removes the tax. I'll get it figured out.

Its been doing it both ways. Sometimes it adds tax at he beginning. Another time it didn’t and I went all the way to the end of the checkout process and then it added the tax right before I was about to pay with Paypal.

Clear your browser cache and try again. It should be fixed now, although I've never seen it calculate incorrectly at the end of the line and I've tried dozens of addresses and zip codes.

I cleared the browser cache - still happening. Total should be $86.85

Step 6: Confirm Order
Product Name Model Quantity Price Total
XTAR VP2 Charger - 10440 - 14500 - 16340 - 18350 - 18500 - 18650 - 26650 - LiFePo 4.2V 4.35V

  • Add Car Charger: Yes XTAR-VP2 2 $40.75 $81.50
    Sub-Total: $81.50
    US Envelope Shipping: $5.35
    Total: $86.85
    Sales Tax 6.85%: $5.58

I had no problem with yet another order. :slight_smile:

(Had to test the new system, don’t ya know!)

Good to see those pcb's back in stock.

Just figured it out! My account address didn’t have a Zip Code. Even when entering the zip on checkout screens – the sales tax still appeared. After modifying my account address to include my zip code – the order process didn’t try to charge me tax. Just placed the order with no problems now. -Steve

Ha ha ha. Even though I know some of my lights are 3000+lumens or have a tight beam I’m still going to look into the business end while it’s on full power one way or another. I know it’s dumb in the back of my mind, but I can’t NOT look at it. I have to do it at least once with each light.