KD (kaidomain): Deals and new products thread

ReManG · August 9, 2015, 10:50pm

merikgvr4:

Tom E:

merikgvr4:

What is a good charger for these? I am using a nitecore I4

That’s always a problem with these very low capacity cells. The best charger is one with a 200-250 mA charge rate. The UltraFire’s, even though they say 600 mAh are actually about 350 mAh, so normally you want to charge at or below 1/2 the capacity (0.5C), though some say up to 1C.

I use the OPUS BT-3100 for these now, but the XTAR MC0 looks like a nice quality, cheap charger for this: mtnelectronics MC0 for $5.90. Also the “VP” series of XTAR’s Richard sells will work fine. Richard is listing these chargers the right way - he won’t say a charger supports 10440’s unless it supports a low enough level. Others advertise chargers supporting 10440’s just because they can physycally fit — big difference…

Thanks Tom E, I already ordered the MC0 from gearbest as they have a sale going on. Will order the efest batteries from mtnelectronics.

If you have a charger that can charge LiFePO4, I have been using the Soshine LiFePO4 AAA’s in my buckle with a good increase in brightness over Alkaline. Not as much as a 10440, but runs cooler too… Just an idea.

BanL · August 13, 2015, 9:35am

Bring you guys a promotion on Cree XHP-50 and Cree XP-L HI (Only LED)

Cree XP-L HI V2 1C $5.99
http://www.kaidomain.com/product/details.S024235

Cree XP-L HI V2 1B $5.99
http://www.kaidomain.com/product/details.S024340

Cree XHP50 6500K $7.31
http://www.kaidomain.com/product/details.S024312

CREE XHP50 5500K $7.31
http://www.kaidomain.com/product/details.S024311

BanL · August 19, 2015, 3:00pm

New Cree XHP-70 5-Mode LED Flashlight is arrived to KD

SKU S024364 $54.55

5-Mode (Hi > Med > Lo > Str > SOS)

Can be used for 2 x 18650 / 2 x 26650 or 3 x 18650 / 3 x 26650. Extension Tube is included.

Jubeldum · August 31, 2015, 5:46am

BanL, you forgot one.

SKU S024408 $40.04

Mode Arrangement: Hi > Mid > Low > Strobe > SOS

Battery Configurations: 3 x 18650 / 3 x 26650 Li-ion batteries

”
Cree XHP50 White 2000 Lumens 5-Mode LED Flashlight - Black (3 x 18650 / 3 x 26650)“:http://www.kaidomain.com/product/details.S024408

M4D_M4X · August 31, 2015, 8:25am

what actual bins are the xhp50?
or are 6500k and 5500k of same brightness?

BanL · August 31, 2015, 2:11pm

This XHP50 flashlight is 6000K to 6500K.

M4D_M4X · August 31, 2015, 2:15pm

i asked CS and got very fast response:

@ our Pros:
how good are the hxp50s?

BanL · August 31, 2015, 3:37pm

Sorry for some typo mistake from us.

Cree XHP50 6500k (S024312), it is J4 1C

Rolz · September 4, 2015, 7:59am

Just noticed that Kaidomain has some new XPL HI Stars.

Cree XP-L HI U4 7A2 3000K-3500K LED Emitters with 20mm x 1.6mm Copper Base

http://www.kaidomain.com/product/details.S024424

Cree XP-L HI U4 7A2 3000K-3500K LED Emitters with 16mm x 1mm Copper Base

http://www.kaidomain.com/product/details.S024423

marcl · September 4, 2015, 11:24am

Could you tell what the point of a u4 bin is? Surely that’s a step back from the xml2.

Marc.

hank · September 4, 2015, 4:51pm

> what the point of a u4 bin is?

That wouldn’t be the main target of the production run.

Binning takes the output of the run and sorts them by color and efficiency.

The odd bins collect the emitters that came out a bit off the target; they get sold cheap by discounters to people willing to buy small lots or single items.

https://www.google.com/search?q=led+binning

During production, LEDs will vary in colour, flux and forward voltage and this is also true for products from the same batch. The differences are significant and therefore LEDs are measured and delivered to the market in subclasses or groups called bins and this process of segregating LEDs is called binning. So a particular bin may contain LEDs, which emit light within a range of wavelength, range of flux values and also the range of forward voltage that can be applied safely to the LEDs….
… In the case of a high quality LED luminaire product, proper binning will ensure all the LEDs used have no visible differences in flux (brightness) or colour. However, in case of a failure it has to be ensured that the new or replacement LED has to come from the same bin as the LED which has failed.

marcl · September 5, 2015, 6:37am

hank:

> what the point of a u4 bin is?

That wouldn’t be the main target of the production run.

Binning takes the output of the run and sorts them by color and efficiency.

The odd bins collect the emitters that came out a bit off the target; they get sold cheap by discounters to people willing to buy small lots or single items.

led binning - Google Search

During production, LEDs will vary in colour, flux and forward voltage and this is also true for products from the same batch. The differences are significant and therefore LEDs are measured and delivered to the market in subclasses or groups called bins and this process of segregating LEDs is called binning. So a particular bin may contain LEDs, which emit light within a range of wavelength, range of flux values and also the range of forward voltage that can be applied safely to the LEDs….
… In the case of a high quality LED luminaire product, proper binning will ensure all the LEDs used have no visible differences in flux (brightness) or colour. However, in case of a failure it has to be ensured that the new or replacement LED has to come from the same bin as the LED which has failed.

Lighting Academy | Philips lighting

But the u4 bin is not as bright as an xml2 u2?

Marc.

Blinky1 · September 5, 2015, 10:34am

U4 is brighter than U2… but they are not as bright as the V-bins.

marcl · September 5, 2015, 11:46am

I’m seeing 869 lumens for the XPL U4 VS 1119 lumens for the XML2 U2.

I don’t see the point in the XPL at this bin.

Please tell me if I am missing something as I have no experience with the XPL.

Marc

Blinky1 · September 5, 2015, 11:02pm

Hmm… seems that I was wrong. I assumed, that the XPL and XML2 bins would be equal, since the die size is the same. They are not.
at 3A, XPL U4 should give 869-920 lumens, and XML2 U2 1119-1193.
XM-L2 U2 is comparable to XP-L V4 or V5 in brightness.

pilotdog68 · September 5, 2015, 11:39pm

But you aren’t going to find a 7A tint XP-L HI in a “V” bin anytime soon.

The warmer tints typically produce less lumens, and the HI produces less lumens.

U4 isn’t a bad bin all things considered.

Tom_E · September 5, 2015, 11:58pm

Compare the 7A tints: XP-L HI to XM-L2 - that's more equivalent. I think the XM-L2 7A's were like T2 or T3 - way lower than U2's. There are 7B3's now though in a T4 bin.

Rolz · September 10, 2015, 10:55am

They’ve just added the Cree XP-L HI V3 1C 6500K LED Emitter to their list for $5.79

http://www.kaidomain.com/product/details.S024438

Also listed is a clearance sale of older SSC torches for $10. For some it may be a good value host for modding.

http://www.kaidomain.com/category.128

mattlward · September 10, 2015, 12:01pm

Do you know a way to filter that site for things in a category that are on sale?

ohaya · September 10, 2015, 12:46pm

Hi,

Thanks! I picked up a couple of the $10 lights :)…