XR-E Q5, XR-E R2 and MC-E Comparisons?

[Gunner12]

DX also has some single mode drivers. Look in the DIY section.

If you have a Maglite then you can start with modding that(check here for a start).

 

[Superdave]

Thats a poor Q5, should be up over 200lm at 800mA.

How do you convert lux to lumens?

At the emitter i'm sure it is over 200, with the losses from the reflector, lense and the crenelated bezel it makes sence.


we used Lux/27. That gets us very close to actual IS measurements posted by other members. We got dead on 80lm for a stock 6PDL which was measured at 83lm in a real sphere.

there is a link to the spreadsheet in my thread "fun at work" with some of the results.

 

[ledstein]

As stated by others: The R2 and Q5 are the same LED, just a different Bin. If you have the possibility to get your hands on R2 Binning and are willing to pay the cost: Do it. But be carefull: R2 is prelimary. There aint any mass production. Many shops sell other Bins and just say its R2.
MCE is great if you want highest brightness. You can easily reach 400lm+ at very high efficiency. If you need brightness of >150lm and don't have space for multiple XRE it's the best choice.