UNI-T UT383 Light Meter Lux Meter Lumens Digital Illuminance Meter 0~199,900 Lux (0~18,500 FC) Foot Candles Luxmeter for Film Photography Plants Photometer Lighting Intensity Brightness Measurement

Works great! I use to find PPFD without spending hundreds on a PPFD meter by simply doing a little math found on Google!

This light meter is very nice! It's simple to use, with an easy system that lets you read light intensity with either lux or footcandles. It only has four buttons on the front that are very straightforward, with the settings allowing you to change the units of measurement, a hold setting, and min/max to hold the reading on the highest or lowest amount. You can also switch on the backlight with the hold button, which is really handy for low-light settings. If you're using this for photography, it doesn't have the ability enter in your camera settings like a much more expensive Sekonic light meter, but for the price, it's worth doing the basic conversion formula to figure out exactly the right settings. If you're doing film photography on an older camera without the automatic settings adjustment like a traditional medium or large-format camera, this would be a great, affordable option that costs about as much as a pack of film and is going to give you a significantly better exposed image if used correctly. I took some film photography courses in college, and something like this would have been hugely helpful if I kept it in my bag. The device itself seems to be very well-made, as well. The sensor and body seem to be built to withstand a bit of knocking around, and I don't expect that regular usage would result in it being damaged enough to impact usability. My one gripe with this light meter is the battery configuration - 3 AAA batteries is a bit odd. Thankfully, it includes batteries, but I would have much preferred a meter that takes 2 AA batteries, even if it meant it would be a little wider. Overall, I really like this light meter. For the money, its readings are fast, accurate, and simple, and it seems much better quality than many of the cheaper options on Amazon. Highly recommend!

I purchased this instrument when a club I belong to was concerned their lighting wasn’t up to standard. I thought this will give us a “ball park” measurement and then we will need a better more expensive instrument. This little meter proved to be incredibly easy to use, made very repeatable measurements, and showed an accuracy way better than expected. If you are looking for a good, reliably accurate light meter to use around your facility this is a great choice.

I grow quit a few veggies, and herbs in my basement, and bought an Apogee MX-500 Par meter to read the PAR of lighting my plants get. On one of the Facebook Indoor Growing groups, someone insisted that this much less expensive LUX meter could be use, and the measurement could be accurately converted to PAR. I also read a few of the reviews on this LUX meter where some multiplied the LUX reading by 0.017 and other divided the LUX reading by 59. I used both methods and the calculated PAR was the same. I measured 3 different areas of lighting with both the Uni-t LUX meter and the Apogee MQ-500 PAR meter. All readings were taken under LED 65K lighting. The results were: LUX = 3112, Calculated to PAR was 52.75 Actual PAR was 472 LUX = 1571, Calculated to PAR was 26.63 Actual PAR was 251 LUX=2360, Calculated PAR was 40.12 Actual PAR was 379 Since the best PAR readings for growing plants can be from 250 PAR for seedlings to possibly 800 PAR for flowering, I don't see how the readings calculated from LUX readings relate at all since LUX measures the brightness of lighting and not the quality of lighting used by plants. I hope this review is helpful for you and gives you something to think about.

Worked good, A really handy meter for our green house plants.

Works well and easy to use.

Great little product. I use it for adjusting all my seed starting lights.

Seems to work just fine. Controlling your light intensity is very important.