Old production type XP-G2 S4 2B wanted!

Buy / Sell Want to Buy
1

Dear BLF members,

Please check your drawers cause I am very interested in buying any quantity of old production type XP-G2 S4 2B emitter.

How can you recognize old production vs new production type?

The best method is by taking macro shot and comparison to following photos…

Old has: 1. 40 visible dots on emitter surface, 2. smaller die, 3.different phosphor layer (the phosfor of new one is rougher, the tint of the phosfor is a bit more orange with small red bits in it which are absent in the old die)

Pictures for refference

left is old type XP-G2 S4 2B right is new type XP-G2 S4 2B

Under UV light


So as you can see very easy to spot the difference.

This is not discussion thread! If you want to discuss here is original thread about this: Cree changed production process for XP-G2 emitters!

Please search your drawers and PM me if you want to sell me some.

Please suggest your price and PM me.

Thanks :beer:

2

Let me check… I may have a very few.

3

Pretty please :slight_smile:

4

Mine are 1A… and only S2

5

Whatever luminarium is paying, I’ll pay double :wink:

6

You are cruel :stuck_out_tongue:

7

Good ones if they are from old batch… If lucky it can reach similar lux performance(less likely) of old XP-G2 S4 2B with more clear upper neutral white tint.

I used old XP-G2 S2 1A before old S4 2B was released… Nice tint when de domed but old G2 S4 is better performer at less current draw in FET driver. (4.8 - 5A vs 4.2-4.5A)

There should be reels and reels of old XP-G2 S4 2B emitters somewhere. I think if any commercial seller could get them he would earn small fortune in no time but I guess no one is interested to investigate and find them?

8

Don`t think so. Top bin leds are produced by very small quantities. Who are using hole reels? Those who have manufacture of led lamps, armstrong lights, industrial lights, street lights and etc. They don`t worry about tint and buy leds as “tint kit” or simply by CCT only.
So there are lots of reels with R3 bin tint kit leds, because they were produced in much more quantities.

9

Intl-outdoor for example claims that he is the exclusive seller of the R4 bin of the XP-E2. So that seems like a low quantity deal with Cree.