So this is the second installment of my LED tests.
I am using the same modified PVC true integrating sphere as all my other tests. Basically everything you need should be in the spreadsheet.
So I decided to test out a Latticebright “XM-L” knock off since I have yet to see any kind of official numbers on them. I needed a new test LED for testing drivers anyways so I reflowed it onto a copper DTP star to make testing fair.
This particular LED was out of an 8x Skyray king. It was a cold tint but not anything more then you see in most lights, pretty average in tint really for a cool white.
Before we get to the output test one thing does need to be pointed out about these, they may be XM-L knock offs but they are most certainty NOT XM-L’s in anything but external size.
The die size is basically the same as an XP-G2 and it should really be compared to those due to this. You also get the much tighter beam with them as well just like the XP-G2 vs XM-L.
Overall I was surprised at the results, I had expected closer to ~600 lumens. I stopped the test since I didn’t feel like reflowing another one at the time and I knew output would just keep dropping till it popped. I can do another test sometime if people really want to see when they blow.
Now for the results, click for larger and easier to read version:
If guns cause crime, then pencils cause misspelled words.
Giving money and power to government is like giving whiskey and car keys to teenage boys. -- P.J. O'Rourke , Civil Libertarian
My LED Test series - XP-L2 V5 - Nichia 219C 90+ CRI - Latticebright "XM-L" - XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5 - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests