Strong light small space ,turn down power ?

Ok, I was wrong...You can get a PAR meter for under $200... Cheapest I could fine with a good start rating. https://amzn.to/3bBe7un

Still $180... As I only grow for myself, ill stick with my $40 LUX, but there ya go if anyone wants something more accurate.

LordHill said:

Ok, I was wrong...You can get a PAR meter for under $200... Cheapest I could fine with a good start rating. https://amzn.to/3bBe7un

Still $180... As I only grow for myself, ill stick with my $40 LUX, but there ya go if anyone wants something more accurate.

Click to expand...

The cheap par meters are usually just repackaged lux meters with a couple of colour gels in front of the sensor.

Photone is way better than cheap fc or lux meter. Free version, try it.

LordHill said:

Ok, I was wrong...You can get a PAR meter for under $200... Cheapest I could fine with a good start rating. https://amzn.to/3bBe7un

Still $180... As I only grow for myself, ill stick with my $40 LUX, but there ya go if anyone wants something more accurate.

Click to expand...

I have one of those. They’re great! It’s essentially a lux meter that does the conversion for you. Not a true par meter but it gets the job done. It helps that I got mine for $30.

unless if you’re using a iPhone 11 or newer then those photon apps are unreliable when comparing different phone models. try to find someone who has compared whatever phone model you have to one of those apps.

par Meter > lux meter > manufacturer’s recommendation > apps

My Photone Pro was exactly on on k ratings measuring to spec various light sources.

hillbill said:

My Photone Pro was exactly on on k ratings measuring to spec various light sources.

Click to expand...

What phone are you using? Again, the app is credible but it depends on your phone model.

I would use the app in correlation with the manufacturers recommendations for light/canopy distance.

iPhone 7, works well, hope it works on SE 2022. The free CMH 4000k setting will be very close to white LEDs.

Photone app isn't that far off. I have a decent PAR meter (Apogee MQ 500) and the Photone app was reading 100par below that. Easy to calibrate the photone app to my PAR meter and now I have a DLI calculator and two par meters. Very nice app.

A $20 lux meter works just fine for measuring light output (blurples not included) for 99% of use cases

Migro has a video demonstrating the linear relationship between lux and his PAR meter

Roughly lux * .017 = ppfd (for a UNI-T lux meter)