PAR METER (PPFD): Lightray Diffuser & Cosine Corrector Reviews
★★★★★ 4.88 out of 5·59 verified reviews·9 with photos
James S.
Just learning to use it but I think it’s pretty good.
Steve J.
Still not fully convinced that I'm getting what I paid for.
Jeremy W.
It's not a huge deal that the app makes you pay $6 for the full-spectrum feature, but it is kind of BS if that's the most widely used part of the app in the first place. Sneaky, sneaky. If it were like $9.99 to unlock the entire app, I'd have nothing to complain about. (I'm a cheapskate, gimme a break.) That said, the defuser with the app works amazingly. It beats paying for an Apogee meter.
Banyan D.
Definitely worth the money. Turns your phone right into a par meter that works great with one simple app without having to go and buy some expensive piece of equipment that some people can't afford.