How to measure light intensity using a light meter.
Low light lux meter.
It also helps you space out your plants and try different configurations with your light to maximize the amount of plant matter in the sweet spot.
Pyle plmt21 handheld lux light meter photometer with 20000 lux range 40 measurement range up to 20 000 lux sampling rate.
We ll be walking through the steps on how to use this specific device but it s a simple process that should translate to all light.
Using a light lux meter is the best way to measure light intensity it gives us the ability to choose the optimal light intensity for an environment.
We use the dr.
Btmeter bt 881d digital illuminance light meter measure lights 0 01 400 000 lux 0 01 40 000 fc foot candles luxmeter with 270ยบ rotated sensor for plants led lights indoor outdoor light tester btmeter.
In photometry this is used as a measure of the intensity as perceived by the human eye of light that hits or passes through a surface.
A lux meter helps you find the sweet spot for your grow light where your plants get the highest amount of light without getting burned.
Specifically 1 lux equals the amount of light that falls on a one square meter surface that is one meter away from a single candle.
10 lux equals the amount of light produced by 10 candles one meter away.
A camera with a 1 lux rating claims to be able to produce an image by the light of one candle that is about three feet away from the subject.
But leds produce white light in a different way to incandescent or fluorescent lighting so it s important to use the correct meter.
Ilt combines a hamamatsu pmt miniature power supply filters and optics into a compact housing that allows measurements as low as nlux and fw cm 2 over the ranges of 250 780 nm.
Meter light meter which has proven to be a reliable tool for the price.
The adjustable range for quick easy readings has an accuracy max 4 and repeatability of 2.
Lx is the si derived unit of illuminance measuring luminous flux per unit area.
There are many free options available note that some apps might have ads or in app purchases.
It is equal to one lumen per square metre.
1 lux 0929 foot candle.
Low light level detection and measurement requires the use of a pmt sensor and highly sensitive light meter capable of measuring very low current or voltage levels.
It is analogous to the radiometric unit watt per square metre but with the power at each wavelength weighted.
Ask an adult to help you search for a lux meter or light meter app on a smartphone or tablet.
2 times sec reading hold function 9v battery operated.
