WTS: Calibration lights for DIY integrating spheres / lumen tubes - 67 € -

Awesome, thank you. No hurry

Will different 18650’s effect the calibrated reading? I’d be using the 30Q, NCR18650B or NCR18650GA. Should they read the same on Med?

There’s no difference between different batteries, since the S2+ uses current regulators at a very undemanding level.

Hi Maukka, I’m in for one set.

- Clemence

These have been shipped now.

Great, thanks Maukka

You okay in there

edit: doesn’t seem to be close to Bali

Yes, I’m okay. Thanks for checking Maukka. We’re in alert mode and stay away from the river and shoreline. Sulawesi shares the same tectonic plate with Bali.

- Clemence

Hi !

Not sure how PM work here ;-) so i prefer to double : I'd like to have a lights kit (you have a PM)

I was able to use maukka's calibration light with the Texas Ace Calibrated Lumen Tube in a review

HERE

Hi Maukka,

I was wondering something. When you use your sphere to test flashlights do you put them on that post in the center of it or do you shine them in thought a hole on the outside? Also does your sphere have a baffle that prevents light from hitting the sensor directly? If yes do you have a picture? Thanks

I use the side input port with an additional diffuser. The post inside the sphere is for omnidirectional light sources such as LED/incan bulbs. There’s a baffle between the light source and sensor port.

Ok, thanks. When you put it in from the side is the flashlight butting up against the added diffuser or a piece of glass to make the insertion depth the same each time? Or does that even matter?

Exactly, the bright end of the light is a couple millimeters inside the sphere pushed against the diffuser. The insertion depth doesn’t really matter as long as it’s not outside the sphere and the depth is the same as when I measure the absorption effect of the light itself with an auxiliary light. The consistency is useful though when measuring several similar lights as I don’t have to measure the absorption for all of them.

Hi Maukka, I am interested in getting your calibration set… 3 of us here in Texas with boxes built from the same source have been talking and we’d like to test our boxes with the same two lights, so we will compare our P-Trap light boxes and see where we all stand based on a single set of calibration lights.

Please inform…

Sure, I’ve got two sets ready to go immediately. Will PM you the details.

I’m interested in purchasing one, and sent a PM asking for the paypal details. Thanks.

Maukka has sent these calibration lights my way, 3 of us will be testing with them here in Texas soon, will report…

Hi Maukka. Do you have any left to sell?

I’ve got one.

Thanks. Payment sent.