Reddit Reddit reviews URCERI Light Meter Digital Illuminance Meter Handheld Ambient Temperature Measurer with Range up to 200,000 Lux Luxmeter with 4 Digit Color LCD Screen

We found 10 Reddit comments about URCERI Light Meter Digital Illuminance Meter Handheld Ambient Temperature Measurer with Range up to 200,000 Lux Luxmeter with 4 Digit Color LCD Screen. Here are the top ones, ranked by their Reddit score.

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URCERI Light Meter Digital Illuminance Meter Handheld Ambient Temperature Measurer with Range up to 200,000 Lux Luxmeter with 4 Digit Color LCD Screen
Measures luminosity from 0 to 200,000 Lux and ambient temperatureHigh accuracy of ±3% rdg ± 8 dgts (<10,000 Lux), ±4% rdg ±10 dgts (>10,000 Lux)4 digital color LCD screen, MIN/Max readings, data hold, auto power off, and low battery indicationHandheld design, lightweight and compact, easy to transportWide range of application, use lux light meter for set design, factory, office or home use
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10 Reddit comments about URCERI Light Meter Digital Illuminance Meter Handheld Ambient Temperature Measurer with Range up to 200,000 Lux Luxmeter with 4 Digit Color LCD Screen:

u/oddsnsodds · 3 pointsr/houseplants

And light meters are cheap!

I bought this one to check brightness and distance when I use plant lights in my house:

https://smile.amazon.com/gp/product/B075DC6X25/

u/strandedonearth74055 · 3 pointsr/microgrowery

They look healthy, imo. Patience, they're developing.

Check these out


https://www.royalqueenseeds.com/blog-how-to-use-a-lux-meter-to-increase-your-cannabis-yields-n977


Check this out at Amazon.com
URCERI Light Meter Digital Illuminance Meter Handheld Ambient Temperature Measurer with Range up to 200,000 Lux Luxmeter with 4 Digit Color LCD Screen https://www.amazon.com/dp/B075DC6X25/ref=cm_sw_r_other_apa_i_4yeUCb8MFS7XF

u/remotelove · 3 pointsr/Chameleons

While not required, I also would purchase a LUX meter like this.

Based on what a typical UVA/UVB reptile light puts out, the target intensity is between 8-9K LUX. I have a meter for other reasons but when I play with my Cham lighting, it's a good tool to have.

Believe it or not, a minimum of between 3 and 120 μW/cm2 for lighting is about all that is needed to prevent MBD. Here is a long read on the subject. Studies are tricky though. It's very difficult to get pure "lab conditions" in a home setting, so take it as you may.

This may be corrected when actually I do the conversion between μW/cm2 and/or μm/cm2 to LUX. I'll do that when I get out of bed this morning. Spitballing 8-9K LUX does seem right though.

Edit: 120 μW/cm2 is about 820 LUX, but you are not going to get ideal heating from that intensity.

u/R3v0ltingN3rd · 1 pointr/cannabiscultivation

I bought a Lumens meter for $20

https://www.amazon.com/gp/product/B075DC6X25/ref=oh_aui_detailpage_o09_s00?ie=UTF8&amp;amp;psc=1


And I use it more than anything.


I found that PEAK is 20k lumens is max for a full grown plant and 19k for sprouts.


Comfort zone is around 17-18k (peak). Every inch drops by 1000 points.



But, with under powered lights you have a second problem, radiation from the LED output device.


If you have to push the LEDs to close to get the 20k, you'll burn the plants very prematurely from heat from the board and some other radiation source that I am presently on a quest to get the exact physics on.



If you got outside on a partly cloudy day you'll pull 90k lumens from The Great Photon Emitter in the sky.



I have a high powered device, probably like what you ordered as a main flowering LED and its almost 2.5 to 3 ft above the plants and comfortable handles 2 plants. For a 3rd, I am squeezing and rotating a lot.


I dangle a lower powered 80w at a side angle to 'fluff' the top and middle from a different angle with photons. Never exceeding 20k lumens at any point on the plant.


I might still be a little to high and need to back my lights off some.



Remember, LEDs are just laser beams with a borked direction

u/tunage · 1 pointr/cannabiscultivation

Pick up one of these. I use it all the time.

https://www.amazon.com/gp/product/B075DC6X25/ref=oh_aui_detailpage_o00_s00?ie=UTF8&amp;amp;psc=1


Mine is the pretend 2000w version and for me, 1100k lumens (about 3.5 ft) for sprouts and then slowly implement to about 2100k lumens (about 1.75 ft) for full growth flowering. I'm comfortable with 2 plants as long as I rotate a lot.


You're lower powered and might be tempted to lower to much.


LEDs are exact in their spectrum (end abruptly) unlike incandescent which bleed across the board. But that makes them more efficient in the spectrums you want.

LEDs are basically low powered lasers with a borked direction.

Your eye appear to see less light, even though just as much radiation is hitting your eyes (and those sensitive leaves).


Don't trust your eyes, trust the $20 gizmo and the coloring of the leaves.

u/mageman314 · 1 pointr/cannabiscultivation

Yep, I had the same thing happen on my first grow (on my 3rd now). It's stretching due to not enough light. You can basically ignore the recommendations of the grow light manufacturer's as far as distance above the plants -- they seem to always err on the side of caution. I bought this lux meter on Amazon for about $20: https://www.amazon.com/dp/B075DC6X25/ref=cm_sw_r_cp_apa_i_xnYUDbD3MF0DF
I've been keeping the light intensity between 10K - 20K lux for seedlings and that seems to work for me. Then gradually increase.

u/krii1 · 1 pointr/microgrowery

Yeah, if you've got an unhealthy plant it could be Wrong nutrient solution pH or wrong nutrient intensity (PPM) or too little/too much light

You can hone in on those issues with those devices. Without them you couldn't know of one or more of those are Messing with you

Then there's Humidity/Temperature (https://goo.gl/images/Lf31JV orange is optimal)

Then your medium could be fucked Up, too dense, Bad components (screws with pH), Salt build up

Or your Nutrient composituon could be messed Up (Missing CalMag, Bad Base nutrients)

Those 3 devices together with a Tempreture/Humidity measuring device (godmode would be a Graph with multiple measurements, those things only cost Like 30$) should Cover most your bases.

pH and PPM: https://www.amazon.com/Water-Quality-Meter-Pancellent-Temperature/dp/B06XCMNFVQ/ref=mp_s_a_1_1?ie=UTF8&amp;amp;qid=1542216012&amp;amp;sr=8-1-spons&amp;amp;pi=AC_SX236_SY340_FMwebp_QL65&amp;amp;keywords=ph+ppm&amp;amp;psc=1

Lux: https://www.amazon.com/URCERI-Handheld-Digital-Temperature-Measurer/dp/B075DC6X25/ref=mp_s_a_1_3?ie=UTF8&amp;amp;qid=1542216067&amp;amp;sr=8-3&amp;amp;pi=AC_SX236_SY340_QL65&amp;amp;keywords=lux+meter&amp;amp;dpPl=1&amp;amp;dpID=41VbfwkdRUL&amp;amp;ref=plSrch

u/RabbitNightmare · 1 pointr/cannabiscultivation

Chances are you are WAY to close and definitely not too far away.

Those sprouts are trying to get their head in the dirt, not reach for the sky like a guppy on its last breath.


https://www.amazon.com/URCERI-Handheld-Digital-Temperature-Measurer/dp/B075DC6X25/ref=pd_rhf_sc_p_img_12?_encoding=UTF8&amp;amp;psc=1&amp;amp;refRID=N1J50XP6BGAA8515VKWS


Find the point they are reaching for the sky (about 3 to 3.5ft or higher if your lights are stronger). Then lower a little at a time (every 2 days) until they level off a little.

They should always be reaching just a little at the tippy top. about 10 - 15 degrees.


Also, if your leaves turn too dark too quickly, is another sign of roasting your bud (to be) way to early.


LEDs like lasers. are a specific wavelength. Your eyes are uses to many colors coming from the sun and incandescent bulbs. About half the spectrum is missing from LED (so it can be more efficient in the ones you want), so your eyes 'think' its not as bright, but it is. At least in photon impact and heat generated is concerned.

u/MakelGreeto420 · 1 pointr/microgrowery

Those two lights on the outside are not going to add anything.. use a lux meter to mesure light intensity on your plants
https://www.amazon.com/URCERI-Illuminance-Handheld-Temperature-Measurer/dp/B075DC6X25/ref=mp_s_a_1_2?ie=UTF8&amp;amp;qid=1549323896&amp;amp;sr=8-2-spons&amp;amp;pi=AC_SX236_SY340_FMwebp_QL65&amp;amp;keywords=lux+meter&amp;amp;psc=1

In seedling stage they should all be getting 5k-10k lux for fastest growth