Today I publish runtimes for my SC64w HI XHP35 for which the emitter was swapped by the famous bob_mcbob. I choose a warmer CCT with a nice “neutral tinted” 2700K Cree XHP35.
I did post a few beamshots here months ago after receiving the light. @Bob_mcbob sorry for the delay, but here we go for the promised second post.
As usual, I use a Sanyo NCR18650GA 3500mAh battery with less than 50 cycles. All tests are conducted in a rudimentary amateur setup, utilizing “bleached” shoebox, a cellphone and Zak Wilson’s Ceiling bounce app. I used an array of lights to calibrate the shoe box. I am very happy with the results and get consistent results with other top reviewers. Still, don’t take these numbers as the absolute truth.
I did not tweak the PID. I tested Levels 9, 10, 11 and 12 at ambient temperature of my basement which is 19°C. For all levels where temperature is assumed to build up, I added a test under cooling conditions. I think both kind of runtimes are important and tells something different.
For each test, I add the result of the original emitter in light grey.
Let’s start at Level 12 (Full screen here):
Cooled: we have 4 steps here. 829, 796, 780 and 762 lumens covering ~42 min. 79% of the 4500K output here.
At the ambient temperature of my basement, the output quickly drops into a ~230-240 lumens zone for around 3.4 hours.
Level 11 (Full screen here):
Cooled: 523 lumens for 80 mins. 74% of the 4500K output here.
At the ambient temperature of my basement, the output quickly drops into a ~244-280 lumens zone for around 3.2 hours.
Level 10 (Full screen here):
Cooled: 310 lumens for ~3 hours. 73% of the 4500K output here.
Ambient T°: At the ambient temperature of my basement, the output quickly drops into a ~256-280 lumens zone for around 3.2 hours.
Level 9 (Full screen here):
~160 lumens for 6.25 hours. 78% of the 4500K output here.
Level 8 (Full screen here):
77 lumens for nearly 13,5 hours. 75% of the 4500K output here.
That’s it for today! Next runtime should be with my new D4V2 dual Channel (W1 + 519A 2700K).