COURUI DO1 'Big Head' (Black/GRAY NOW AVAILABLE) $29.99 @ Gearbest ( use coupon: gbcourui) A long-throw modder's light!

Additional 6 modding threads about the Courui that you guys might be interested in:

MT-G2 COURUI Anyone? Another O-L mod. MT-G2 COURUI Anyone? Another O-L mod. PHOTO HEAVY - BEAM SHOTS ARE UP! 02-06-14 (by Old Lumens)

Courui/Big Head Torch Mod [FINISHED] Courui/Big Head Torch Mod [FINISHED] (by Rod911)

Help needed! Courui modding issue (permanent on) Help needed! Courui modding issue (permanent on) ( by bibihang )

Courui Big Head - loss of brightness Courui Big Head - loss of brightness (by G0OSE )

Second Attempt: COURUI with LD-36 driver ~ Series Conversion ~ BETA version ~ Don’t Try This At Home Second Attempt: COURUI with LD-36 driver ~ Series Conversion ~ BETA version ~ Don't Try This At Home (by Ouchyfoot )

COURUI Conversion: Parallel to Series ~ “My Way” ~ Heat Sink Finished ~. Mod Finished …“Really Finished”!!!
COURUI Conversion: Parallel to Series ~ "My Way" ~~~ Heat Sink Finished ~~~. Mod Finished ..."Really Finished"!!! (by Ouchyfoot )

(above threads now added in a consolidated modding thread portion at the bottom of the OP)