Your Smartphone is a Quantum Par Meter | “Photone” App

This video is not sponsored by the app developer. I have been meaning to do a video comparing a lux meter to a smartphone app, but no apps that I know of have had reliable and repeatable results until now. In order to use a camera on a smartphone and get consistent results when used as a light meter, it must have calibrations for various light sources. These days there are too many different types of light sources to produce consistent results. That's why this app has calibrated lighting types to choose from. App: https://apps.apple.com/ch/app/korona-plant-light-meter/id1450079523 To save 3% on you next Mars-Hydro purchase, use coupon code GrAn22Coupon - is no longer good for the TS or SP series. Mars-Hydro Website - http://bit.ly/2QA55AA Mars SP250 and PH Comparison Series - https://www.youtube.com/playlist?list=PLogUxCOrWb5wAuan_IKBr3IrHQaonfd2u Full disclosure, I do make a small commission if you use my coupon code. The only product you cannot use the code for is the Mars ECO light. Affiliate Links: PH Pen - https://amzn.to/324pEcv General Hydroponics Nutes - https://amzn.to/2HuzIlDVEG+BLOOM Nutes - https://amzn.to/39EUhaP PH up PH Down - https://amzn.to/2SLmdDo 2" Net Cups - https://amzn.to/2uRuhdJ 3" Net Cups - https://amzn.to/37qGnYI Rock wool cubes - https://amzn.to/2SVwa1k Air pump - https://amzn.to/3cttYXr XL Clay Pebbles - https://amzn.to/3cfA3q4 Small Clay Pebbles - https://amzn.to/2zqkqxK Grow Tent - https://amzn.to/3fxK6c7