LED UV

[zbrusko]

What exactly is the UV light produced by our LEDs? Is this potentially dangerous in any way to be under it working on the tank?

 

[Troylee]

Typically uva and it’s harmless. The only lights I’ve ever used that needed glass to be protected from are hqi metal halides. The standard mogul halide doesn’t require it.

 

[BryanM]

I wouldn't know the answer like Troylee above - but I can say I have four ReefLED 90's on my tank, and I've been in, around, and under them a LOT with no adverse affects.

 

[Hooz]

VERY few reef LED fixtures produce any actual UV (wavelengths under 400nm). They call it UV, but it's really just violet in the 400nm range.

I wouldn't recommend staring into the light, or close exposure for extended periods of time, but it's not much risk.

 

[zbrusko]

What exactly is the UV light produced by our LEDs? Is this potentially dangerous in any way to be under it working on the tank?

If you are using standard LED strips or white-light LEDs, there are typically no health concerns related to ultraviolet radiation.



If using ultraviolet LEDs, particularly UV-B or UV-C types, take appropriate protective measures to avoid direct contact or staring directly at the UV light source, especially during prolonged operation of aquariums.

So I have AI hydra 32. Which group do they fall under?

 

[oreo54]

So I have AI hydra 32. Which group do they fall under?

Is there a 32 and also a 32 hd?
I don't remember off hand.
Anyways so says this for an hd:

AI Hydra 32 HD reef version
The standard Hydra 32 HD model for saltwater reef tanks includes the following LED spectrums:

• Ultraviolet (UV): 2 LEDs, around 405 nm
• Violet: 2 LEDs, around 415 nm
• Royal Blue: 8 LEDs, around 440–450 nm
• Blue: 8 LEDs, around 460–470 nm
• Cool White: 4 LEDs
• Green: 2 LEDs
• Deep Red: 2 LEDs
• Moonlight: 2 LEDs, mimicking a natural lunar cycle.

The 405's are not technically UV ( UV starts at 400nm). There may be a teeny tiny bit due to the shape of the curve. 405 is peak.
See the teeny bit at < or = to 400.
This is just a random 405nm led btw

 

[zbrusko]

So I have AI hydra 32. Which group do they fall under?

Is there a 32 and also a 32 hd?
I don't remember off hand.
Anyways so says this for an hd:

AI Hydra 32 HD reef version
The standard Hydra 32 HD model for saltwater reef tanks includes the following LED spectrums:

• Ultraviolet (UV): 2 LEDs, around 405 nm
• Violet: 2 LEDs, around 415 nm
• Royal Blue: 8 LEDs, around 440–450 nm
• Blue: 8 LEDs, around 460–470 nm
• Cool White: 4 LEDs
• Green: 2 LEDs
• Deep Red: 2 LEDs
• Moonlight: 2 LEDs, mimicking a natural lunar cycle.

The 405's are not technically UV ( UV starts at 400nm). There may be a teeny tiny bit due to the shape of the curve. 405 is peak.
See the teeny bit at < or = to 400.
This is just a random 405nm led btw

Ok, thank you. I suppose I could Google this info, but if you can answer easily, how does the -b or -c come into play?

 

[oreo54]

Ok, thank you. I suppose I could Google this info, but if you can answer easily, how does the -b or -c come into play?

UV-C never reaches earth naturally. Nothing really has any defenses for it.
Apparently in ag it can be used to kill things like powdery mildew with a few SECONDS exposure.

Also used for water sterilization.

Doubt if one wants it in your reef lights.

As to UV-B I think the need or want is sort of wide open to interpretation.

 

[zbrusko]

Ok, thank you. I suppose I could Google this info, but if you can answer easily, how does the -b or -c come into play?

UV-C never reaches earth naturally. Nothing really has any defenses for it.
Apparently in ag it can be used to kill things like powdery mildew with a few SECONDS exposure.

Also used for water sterilization.

Doubt if one wants it in your reef lights.

As to UV-B I think the need or want is sort of wide open to interpretation.

So would those be wavelengths < 400 nm?

 

[oreo54]

So would those be wavelengths < 400 nm?