jon_slider
Flashlight Enthusiast
- Joined
- Mar 31, 2015
- Messages
- 5,140
Inspired by a post about a DIY integrating sphere design, I did a quick test, using a vitamin jar cap as a diffuser. I had to add 1 piece of white envelope paper, and one piece of kleenex, under the cap, to "calibrate" it.
I used my new Integrating Cap to test two Lumintop lights.
On the left a ReyLight Tool w Nichia, ReyLight modes are mfg spec to be 1-16-80
On the right a Lumintop Tool w Nichia head, on a Maratac body, Tool modes are mfg spec to be 18-3-80
I calibrated to the ReyLight Low as 1 lumen, the result is it reads 2.5 lumens for the Lumentop Tool Low
I also measured the ReyLight High at 75.5 lumens, and the Tool head at 78.4 lumens. Im very happy with the ability to read relative differences between the two lights. Im also happy that after simply calibrating to the ReyLight Low, the readings on High are close to mfg spec. The differences between the two high modes can fall within variation of the state of charge of the eneloop batteries in the lights. (the test could be improved by using the same battery in both lights maybe).
you can see in the beamshot that the ReyLight obviously has a lower Low:
it just helps to be able to quantify the differences, here is the ReyLiht Low calibrated to read 1 lumen (mfg spec is 1 lumen):
that calibration reads 2.5 for the Tool head on Low (mfg spec is 3):
here are the beams on High side by side, and their readings (these are both N219b lights, you can see they use different batches of CCT):
ReyLight High (mfg spec is 80):
Tool head High (mfg spec is 80):
I tested the medium modes too, they came out higher than mfg spec, but similar to each other:
ReyLight Medium:
Tool head Medium:
The L11c w Nichia 219b is rated 0.09-3-30-140
my homemade integrating cap did not read any differently than its resting state on the lowest mode,
here is the 2d mode (mfg spec is 3):
here is Medium (mfg says 30):
High mode was a suprise (mfg claims 140):
all lights tested with fresh Eneloop
I used my new Integrating Cap to test two Lumintop lights.
On the left a ReyLight Tool w Nichia, ReyLight modes are mfg spec to be 1-16-80
On the right a Lumintop Tool w Nichia head, on a Maratac body, Tool modes are mfg spec to be 18-3-80
I calibrated to the ReyLight Low as 1 lumen, the result is it reads 2.5 lumens for the Lumentop Tool Low
I also measured the ReyLight High at 75.5 lumens, and the Tool head at 78.4 lumens. Im very happy with the ability to read relative differences between the two lights. Im also happy that after simply calibrating to the ReyLight Low, the readings on High are close to mfg spec. The differences between the two high modes can fall within variation of the state of charge of the eneloop batteries in the lights. (the test could be improved by using the same battery in both lights maybe).
you can see in the beamshot that the ReyLight obviously has a lower Low:
it just helps to be able to quantify the differences, here is the ReyLiht Low calibrated to read 1 lumen (mfg spec is 1 lumen):
that calibration reads 2.5 for the Tool head on Low (mfg spec is 3):
here are the beams on High side by side, and their readings (these are both N219b lights, you can see they use different batches of CCT):
ReyLight High (mfg spec is 80):
Tool head High (mfg spec is 80):
I tested the medium modes too, they came out higher than mfg spec, but similar to each other:
ReyLight Medium:
Tool head Medium:
The L11c w Nichia 219b is rated 0.09-3-30-140
my homemade integrating cap did not read any differently than its resting state on the lowest mode,
here is the 2d mode (mfg spec is 3):
here is Medium (mfg says 30):
High mode was a suprise (mfg claims 140):
all lights tested with fresh Eneloop
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