Does anyone here use this DLI calculator I found?
https://growlightmeter.com/calculator/
It basically tells me exactly what PAR my plants should be receiving each week. I would really like to know if anyone has strictly followed its week by week recommendations and how the grow went.
Alot of growers including myself use it. Very helpful with your grows.
I’m 3 days after germination. I’m at 190 PAR at top of plant, 18 on 6 off which is giving me 12.3 mol/m²/d at a recommended 12. This is AWSOME!
I use it also. I paid the onetime fee of $5.99 for the LED Full Spectrum option, but I believe it’ll be worth its weight in gold. Now that my ladies are moving into flower I check daily. Great suggestion by a growmie. 
It didn’t download the app. I’m using a Photobio PAR meter. I’m just using the calculator in the pic below. I’m hopeful this is going to maximize my yield or at least help.
@av8ersteve Ah…… now I understand I use the phone app, but I’m sure we will both benefit from using this technology. It was a great suggestion and more cultivators should be made aware of its existence. Have a pleasant day. 
yes Photone is the phone app I can take my readings using the photo lens on my smartphone.
So I used it a base guide for the most part especially more towards the start of the grow. But I’d say around mid veg I really started to push things. Especially running co2 and the more I got dialed in the more I really started pushing.im pretty sure I was way over recommended value when I was into flowering. Even still so on my last week before the El chopo chop chop.
I use a piece of paper as my filter and I find I get higher readings when I use a wider piece of paper. I had less of the area around my lens covered and I was getting a DLI of 48/49 at my tops. I cut another wider piece that covered over my earpiece and over the top of the phone and my number was 54 I raised my lights a few inches. Back to a reading of 48. I have to figure my paper filter isn’t really scientific technology.
Get the photobio par meter. It’s relatively cheap . Mine has served me well
Thank you very much I’ll check that out right now. I’d rather have something I can count on rather than estimates. I’d hate for my plants to fry or herm.
PHOTOBIO LGBQM2 Advanced Quantum Sensor PAR Meter (Micromoles), Measure Light Intensity https://a.co/d/7kesXG5
That’s the one I use. Works perfect!
That it does. 
