BLF LED Database - Collaboration Spreadsheet - Share latest news about where to buy LEDs

Thanks Calvin!
I was not aware of the coupon code, and I am sure I was not the only one! I have added it to the information page. Is it 5% off from anything, always?

I have not changed quantity discount to yes, since that is more of a general store thing, and it needs to work for 5 items or less.

You don’t have any “inside” information about copper MCPBCs do you?? :wink: :wink:

I am not sure what the forum rules says, since this thread is not in the commercial area. But I would certainly not mind if dealers updated special deals or even added some of their products…

5% discount code is not stackable and does not apply to clearance items and specific special projects like the PixelPusher, X60L3. In regards to copper MCPCBs, we have a current project we are working on with direct thermal copper boards. If I had the time I would edit the doc directly :P

Someone messed up the first page… Same type of mess that have happened to various other pages in the past… I cant bother to fix it right now. Could it be a format thing or something??

I have noticed that Fancyflashlight (and CNQG) have gotten NW XP-G2 back in stock. This time its 5A tint (4200k). No info on bin…

http://www.fancyflashlights.com/goods.php?id=609

The type of mess is those 1st three lines getting randomly moved down?
First time I’ve seen it.
Would Protected Ranges help perhaps?

yeah… something like that… Something on the top moves down… And several others things mess up too.
Just look at it now… Someone (you?) moved up the lines that was down, so it looks slightly better. But still a mess. Things are out of place…

In the past I have usually fixed it right away… But off to bed now…

I see it is all messed up throughout. The 1st three lines just popped out at me right away.

edit
I’ve noticed a restore previous version function. I’m guessing that can’t be used as it reverts all pages of the spreadsheet, not just the one your on? So there may be additions or updates people have made on the other pages that would be wiped out.

last edit?
Think I got the first page back as it was(?). Next time you come on, do let me know if I screwed anything that I’m just not seeing.
Some of the borders keep disappearing. :ghost:

Sounds like this kind of random mess has been happening often, yes?

Sweeet!! Thanks for taking the time to fix the information page Helios! Highly appreciated!

Yes, I prefer to avoid restoring since that might delete info that have been added. I do often take backups though. So its not that time consuming for me to fix it. Only need to do a copy paste. And then fix hyperlinks and maybe some lines and such… So its probably way faster for me to fix it. But since its the fourth time its happened (2 times to XP-G2 page, 1 time to XM-L and one to information page). Well, in the long run the time adds up… But all looks well now! :slight_smile:

Google docs has that function built in, you just go to the change history.

Thanks Scaru!
That got me looking… When I was logged in I found a sweet function. “revision history”. Maybe that was the thing you were talking about?
Either way. That function was sweet!
Someone had actually managed to mess up the XM-L2 sheet already… Same type of format thing. And it was easy to recover to the exact point before it happend with the “revision history” feature… :slight_smile:

Copy & paste! Doh! :open_mouth:

Actually I think I tried copy & paste on a single line, it complained my browser version was too old :expressionless: (If I was on windows I would surely keep it updated to keep exploits at bay :Sp )

Since you mentioned its happened a few times I figured the time & annoyance might add up. Your spreadsheet is so great, need to contribute when there is a chance. :bigsmile:

Yea, the “revision history” seems to only be available when your logged in. I just used it as reference to rearrange the information page. I noticed someone had made an addition on a different page a couple hours after information page got screwed up & I didn’t know if there could have been additions elsewhere.

Thanks Helios!

All contributions from everybody are highly appreciated!

If there is a mess up in the future. Ill just use the Revision history feature and go back in time to the right point… Even much simpler than copy paste…

Added new bare emitters from intl-outdoor:
XM-L2 T6 3C 7.5$
XP-G2 R5 3C 5.45$
XP-G2 R5 2B 5.45$

Thread about them here

http://www.leddna.com/copper-base-pcb-heat-sink-mcpcb-for-cree-xm-l-xm-l2/

Added. Reminds me of the one Fasttech and LCK-LED sell. My guess is that it has insulation layer, but someone please buy on confirm. That goes for the ones from Fasttech and LCK-LED too…

I have also added MK-R on copper MCPCB and bare. CW, J2 BIN. (highest bin!)
I have also added a simple overview of the different BINs in the MK-R page. Did not look too good, but it gets the job done.

Ft confirmed no conductance between the top pad and bottom, so the FT ones definitely have the insulation layer. See discussions on their product page.

Thanks. Did minor change to comment on those.
Ill let the ones from LCK-LED and LedDNA be questioned until someone have confirmed the same. I assume they are the same though…

Intl-outdoor have now gotten XM-L2 T6 3C on 14/16/20mm
They have also gotten XP-G2 R5 2B and R5 3C on 16/20mm

All added to spreadsheet.

excellent initiatives guys you all have here!
thanks for the sharing :slight_smile:
I don’t know if this is right place to ask.
is there anyway we can distinguish xml bin from the emitter physical attributes?
I’m trying to tell which of my light is T6, U2 and U3 except reading it from the box or label on the light. maybe the labelling is just not true.

Unfortunately there is no way to tell by looking at the LED, you'll need to trust that your source is reliable and not falsely labeling bins.

There are sadly no way to tell the BIN. Only a light meter could tell the difference if you have the emitters you are comparing driven at the same amps… At least, that should tell which is brighter than the other and thereby indication of BIN. Especially if you have one trustworthy emitter to compare with.

Famous name brands should be trustworthy. The majority of cheap Chinese light I would not consider trustworthy.

I think there are a few stores out there that can be questioned even for the emitters added in the spreadsheet. Im thinking specifically about several of the XM-L2 U2s that was early available. ( I would consider Illumination Supply the best source for XM-L2 U2)