https://nl.mouser.com/datasheet/2/245/Luminus_CFT90W_Datasheet-1129831.pdf
I see “high current operation: up to 27 A DC”.So,how it could go up to 40A?
Please read the first post(s) of this thread.
LEDs can be driven past the recommended manufacturer specifications.
This is what enthusiasts do and is the entire point of this topic, if you even read the first post.
I see.So,I wish some of you can put it in a GT,test it and share the specs with us,so as others follow. 
Thank you all.
Are you not aware that this has already been done? Vinh over at Skylumen has built several GT’s with this emitter. His posts are mainly on CPF.
Over here, Lexel has already fitted it into a GT, check out this thread.
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You forget that I live in Greece,so there are some thousands of miles between me and Vinh,plus the Greek Customs which are very strict, charging much money.Also,I read that Vinh drives the led to 20A,so I don’t know if it is good for me to pay much for little.
If I see that some guy goes to the transfer, with for example a Lexel driver,and I see some photos of this,then I can tell a Greek modder, giorgoskok, and a BLF member as well,to make the job for me. He has upgraded many lights for me till now very well.
Thank you anyway for your response.
Thanks to Web Plot Digitizer I finally reverse-engineered the chart from the Xandre’s test and got some efficacy estimations.
125 lm/W at 700 lm
110 lm/W at 1400 lm
85 lm/W at 2800 lm
58.5 lm/W at 4650 lm (this one is actually provided directly, not reversed)
32 lm/W at 5650 lm
Overall….worse than I expected.
Yeah, it was not designed for efficiency like a Prius car. This is a straight up hot rod. A twin turbo hemi type emitter designed to battle HID bulbs. Lol
If you think this efficiency is bad then go calculate it for the CBT140 
I did calculate it for dedomed SST-40. It was good. This one is better thermally. And factory flat instead of hand-sliced. And much costlier which enables a variety of improvements.
Despite that - it’s much less efficient……
For the intended applications the efficiency isn’t really important. When replacing Xenon short-arcs the benefit lies in the much lower system- and maintanance costs.
SST40 is decent, CBT140 is worse than CFT.
Is there any LED in the pipeline that plans on taking the title from the CFT-90?
What is the “title” your refering to?
Also, most led companies do not talk about upcoming leds due to competition. They just spring it on us when it’s ready.
A quad 2mm white flat has more output and luminance than the CFT90. Not really a direct competitor to the CFT90, but a good alternative as long as you have the proper host and reflector.
Yes, it has been debated in this thread, but according to my understanding, the CFT-90 is currently the ultimate upgrade for the BLF GT. Yes, it doesn’t have the same lumens as the XHP70.2, but it has a tighter beam and further throw. Or am I wrong?
How would this look in a BLF GT? Would it create a cross like the old XHP70 did?
I should have specified you would need 4 separate reflectors.
I can’t remember anything in this thread, it’s too old. 
There is no one perfect led, it depends on what you want. Smaller led dies like xpg2 for instance can create longer throw distance, but have less lumens and a smaller hot spot. Bigger led dies like 70.2 can have a bigger hot spot and higher lumens, but less throw distance. So it depends on what you want.
The CFT90 in the GT requires a special driver which is expensive and then the led is expensive. Making everything fit and focused is extra work. So the cost may make some people think it’s a poor choice.
So all leds have their pros and cons.