Anyone familiar with these drop ins?

Has anyone here got either of these drop ins? I’m guessing they are both XR-E units as Q5 and R2 is rather vague on ID’ing the actually emitter, but pics look like XR-E.

Ultrafire Cree Q5 1 Mode LED Drop-in Module (3.6V - 8.4V)
$8.90
http://www.manafont.com/product_info.php/ultrafire-cree-q5-mode-led-dropin-module-36v-84v-p-4053

Generic Cree R2 1 Mode LED Drop-in Module (3-18V)
$6.99
http://www.manafont.com/product_info.php/generic-cree-r2-mode-led-dropin-module-318v-p-9132

As far as I know an R2 bin should be higher than a Q5. But the Q5 drop in is more expensive, so is it being driven better? Any other info on these two drop ins?

Lastly how do you think this XP-G SMO drop in would compare, I know the XM-G probably won’t throw as well, but with a SMO vs MOP reflector how do you think it’d actually compare in real life?

Ultrafire Cree R5 1 Mode LED Drop-in Module (4.2V –18V)
$9.85
http://www.manafont.com/product_info.php/ultrafire-cree-r5-mode-led-dropin-module-42v-18v-p-4051

I have both of the XRE drop ins and the Q5 one on top is much brighter and pulls more amps than the R2 drop in.

I don’t have the R5 drop in, but it appears to have a new driver I am not familiar with.