What is considered low light, med light, and high light for LED and low tech tank?

[sealife]

Is low LED light considered as 1w per gallon?
Need sone help with how this is measured and worked out.
Thanks.

Sent from my GT-I9305 using Aquarium Advice mobile app

[Fresh2o]

LEDs in planted applications are typically measured using PAR or Photosynthetically Active Radiation. Quoting a discussion of the topic on another forum, in regards to light level and PAR:
Low = 10 - 30
Medium = 30 - 80
High = 80 and up
Some LED light fixture manufacturers publish their PAR readings which make things convenient. Others do not. There are PAR meters that can be used to measure the PAR output.



Sent from my iPhone using Aquarium Advice

[sealife]

Radiation?
Are these lights harming us?

Sent from my GT-I9305 using Aquarium Advice mobile app

[sealife]

By the way, this is my light I have for a 4 foot tank:
http://www.amazon.com/BeamsWork-Lume.../dp/B00EN2GA9Q

Wondering where it stands as I dont see anything about PAR.

Thanks for your help.

Sent from my GT-I9305 using Aquarium Advice mobile app

[Fresh2o]

Radiation is everywhere. Take a walk on a sunny day. However, not all forms are harmful.
I've seen that fixture mentioned on this forum and on TPT (ThePlantedTank). I cannot recall if seeing any PAR readings. You may have to Google deep for this one. Hopefully someone will chime in.


Sent from my iPhone using Aquarium Advice

[Mebbid]

Originally Posted by sealife

By the way, this is my light I have for a 4 foot tank:
http://www.amazon.com/BeamsWork-Lume.../dp/B00EN2GA9Q

Wondering where it stands as I dont see anything about PAR.

Thanks for your help.

Sent from my GT-I9305 using Aquarium Advice mobile app

You will almost never see actual par ratings with fixtures sadly.

With that fixture having 0.5w leds I would throw a guess that it's low light on a 55g. At the very most it would be at the low end of medium.

[sealife]

Ok thanks guys

Sent from my GT-I9305 using Aquarium Advice mobile app