Wintact Digital Illuminance Light Meter Handheld with Thermometer Ambient, Lux Meter Range up to 200,000 Lux, Photometer Light Intensity Sense Test for Garden Indoor Plants LED Grow Light, Photography

The item is great and it's something I could only find on Amazon! The light feature to it makes it so much better! Seems to be accurate in all the reading. Self explained. Buttons make it easy to use a simple design with so much purpose.

The media could not be loaded. This is a pretty good quality light meter, but it the main flaw is that it fluctuates so much and never really stabilizes unless its low light (maybe its just cause I have fluorescent/LED lights??). It does however calculate the difference which helps. The backlight is helpful for low light and it also takes ambient temperature. As for the purpose of my use, it serves me well.Using a light meter to figure out where the light is the strongest has proved to be invaluable. I noticedsome of my plants wilting because the light was too strong and by using a light meter, I was able to identify why. The center of my tent was 20,000 more lux than my outside. Even though it makes my plants grow quicker in the center, when they get too close to the light, they burn. Now I swap short plants out with the tall plants and I use the light meter every week.

Shows 0 lume when the cap is closed which is not a standard for devices in this price range + I have put its displayed values against a SLR measurement on a grey card and both come out in the same range -of course the translation lumen to photo EV at ISO100 isn't not 100% tight but it's good enough to say that I can rely on the shown value of this device

User friendly and exactly what I needed for measuring FCs for houseplants

It does just what it says it does and half the price of the others that are similar. Has a backlight that can be turned on & off and a cover.

Complicated & difficult to understand.

Ii have wanted a light meter for the longest time because I grow exotic plants using natural and artificial lighting. My greenhouse is only so big and and the youngest plants can still benefit from the LED lighting inside the tent, but the bigger ones have outgrown that space and I have to count on natural sunlight. This meter halos my locate the best area with the strongest rays. I know I need at least 150 FC for my flowering perennials and now I finally know the exact measurement of light intensity without having to guess at it using the eyeball method.

Once you learn how to read the results it’s great! I had been guessing on light levels for my orchids. I was mostly wrong. After moving one of them it sent out a bloom spike in 3 days! It’s happy now! Others are sending out new leaves with the proper color! Very nice!