free photone setting for LEDs?

[Alpha_and_Gec]

No one around me has a par meter I can borrow and I don't have anything else to test my light's output. I've been trying photone but the LED setting is paywalled. Is there a way I can tune the free settings to work for LEDs or do I have to pay for the actual LED setting?

 

[Gumbies R Us]

Bumping your post!

 

[JayM]

If you want results as accurate as they can be - you're probably going to need to spend the $7 bucks and unlock the blue/white spectrum.

 

[Dave Reef]

Did you buy it? Does it work?

 

[Reef Puncher]

Did you buy it? Does it work?

It DOES work if you do it right. use right paper, buy the $7 blue white LED calibration. Make sure you put it in a very clear case or waterproof bag as to not add an extra extra layer of diffusion. See here.

Underwater PAR Measurements for Reef Aquariums

The entire reef ecosystem depends on light for photosynthesis, which is measured as photosynthetically active radiation (PAR). But without correction, PAR meters calibrated in air provide only relative values underwater. This article explains how to take accurate PAR measurements underwater.

growlightmeter.com