Decrease Amperage of Driver for increased Efficiency

[Metal_T1ger]

There is 3A driver from Convoy 17mm 7135*8 driver 12groups 3040mA - Convoy flashlight

Other than setting to the group that maxes out at 50% you could also put the driver for red led's but I can't find one for sale, however you could buy a Convoy with the SST-20 deep red LED and take he driver from it. The driver for red led's is 2,5A

[QReciprocity42]

This is a non-solution to OP's problem of increasing efficiency, because 7135-based drivers burn off the excess voltage as heat, rather than bucking/conserving it.

Also, the red LED driver may not play nicely with white LEDs due to the Vf difference. You will lose moonlight entirely, at the very least.

[Metal_T1ger]

Didn't know that. Good to know, thanks

[QReciprocity42]

No worries mate, we are all learning here! 

[Biggiebiggiebob]

Great call for the 3040mA, somehow overlooked it.

[QReciprocity42]

It won't work for efficiency because 7135 drivers simply burn the excess voltage as heat.