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: [ Ссылка ]

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 - [ Ссылка ]

Mars SP250 and PH Comparison Series - [ Ссылка ]

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.

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