Looking at my Tri-Cree xpe2 (BBW) light up for the first time got me thinking...does it get brighter?
don't get me wrong, its very bright connected to the battery (when I was testing to see if I wired the LED's correctly) ... but it still left me questioning if it does get brighter?
As of now, Im running both "blue" LED's on individual (1ohm 2w resistors) connected to a 3.7v 18650 Li battery...eventually it will be hooked up to the NBv3 which I know has a built in driver that you can adjust using the SD card.
will it get brighter once installed and dialed in on the NBv3?
Ive seen people running up to 1100mA (1.1A) on it...and some say that after 990mA you can't even tell the difference...
another topic here says that overdriving them at 1500mA (1.5A) seems to be the limit as to how much power is given to them without burning the bulb out.
heres a quote from that thread:
"What is the maximum safe operating current?
Sustained operation tests were performed on heat sink mounted XP-E2 green and royal blue LED stars at 1.5 amps and 2.0 amps with the collimator lenses attached and all LEDs operating simultaneously.
At 1.5 amps, the LEDs operated continuously for over an hour with no problems.
At 2.0 amps, the LEDs in the LED stars started to fail and go dead in less than 5 minutes.
The operating current for the new test sabers was selected to be 1.5 amps per LED.
The small incremental increase in brightness going from 1.5 amps to 2.0 amps makes it not worth the effort and cost in LEDs to try to find a possible safe drive level between 1.5 amps and 2.0 amps to drive the LEDs."Located Here:
Overdriven CREE XP-E2 LED Sabers & Fluorescence Enhanced Saber Blades