- Location
- bayonne / nj
Anyone local have a lux meter that I can borrow or purchase .
Thanks for looking. Bayonne , N. J. 07002
Thanks for looking. Bayonne , N. J. 07002
Lux Meter
- Thread starter greg 45
- Start date
If you have a smart phone you can download the app or if its a samsung dial *#0*# and got to sensor and light meter. You can get a %95 accurate measurement from that. Also i believe the par formula is Lux*0.0111+1052=par. Try that and let me know what u find out.
- Location
- bayonne / nj
I have a smart phone but don't think it can be put in the tank
will try and down load app thanks
will try and down load app thanks
I don't advise u to do this but I have a note 2 with the lux meter app and a zip lock bag. I put the phone at different levels and then convert the reading to par. Also u can measure the lights at the surface, should be above 50000 lux or better for most corals.
- Location
- bayonne / nj
Downloaded fist app I could find
There are 3 settings to pick from
x0.5
x 1
x 1.5
whats the difference
Est around 22,000
Thanks QueensRob
There are 3 settings to pick from
x0.5
x 1
x 1.5
whats the difference
Est around 22,000
Thanks QueensRob
245 is semi high for chalices and acans and stuff in that nature. almost all softies can live in that par thriving.
there are some collectors that keep stuff like the LPS in 80-170par.
- Location
- bayonne / nj
Thanks for the help
- Location
- bayonne / nj
I have a par meter I will check at surface then at sand bed to see the difference.
I was trying to see the difference between mh and led
that's why I was using lux , considering they say par isn't correct with par meter on led ,
hope this give's you a better understanding of what I am doing .
I was trying to see the difference between mh and led
that's why I was using lux , considering they say par isn't correct with par meter on led ,
hope this give's you a better understanding of what I am doing .
- Location
- bayonne / nj
Queensrob ??? we never pared 66 gal
what are you referring to ??
what are you referring to ??
its 65G and yes i remember bud.
- Location
- Flushing, NY
There is no standard formula to convert LUX to PAR as they are 2 very different things. Lux just measured the total brightness, where PAR measures how much of that light is used for photosynthesis since there is a range of visible light which is barely used for photosynthesis.
That said, there is a formula to convert it assuming you know the conversion factor since each light will have a different conversion factor.
Here's a list of 16 conversion factors, assuming you have those specific lights
http://www.advancedaquarist.com/2008/2/review
Keep in mind this is a rough estimate only since even with different ballst, will cause the same MH bulb to put out a different wavelength of light.
And you can also tell there is a huge difference in conversion factor depending on the light source.
The 'formula' quoted above was probably with 1 specific type of light
- Location
- bayonne / nj
Par meter number out of the water with apogee par meter
mh and led 500 pretty close . Apogee percentage to led is 10 % max.
Mh under water
led under water more optics and more led's 24
depending on hot spots both max out at 200
They seem pretty close
mh and led 500 pretty close . Apogee percentage to led is 10 % max.
Mh under water
led under water more optics and more led's 24
depending on hot spots both max out at 200
They seem pretty close
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