Does this light put out uv rays forfish and plants. And what is the spectrum?
125444
I doubt led can output UV for plants and I would say the spectrum is 4100 K.
125445
According to eHow and several other sources I have read, there is no UV emitted by LED's. Their spectrum is very limited and neither the high frequency end (UV) nor the low frequency end (Infrared or heat) are emitted. The result is a very efficient light emitter right in the spectrum to which the eye is sensitive.
125446
I don't think it has enough power on its own, you would probably need quite a few of them to be effective. Also, I'm not sure if it puts out light in the correct spectrum for growing plants.
125447
do a 'google search: "LED light spectrum" for a wealth of info. not sure the purpose of the question.
125448
Don't know about uv rays but they work well in my pond light is very good have had them about 2 months no problem with fish
1665236
The 6500k spectrum is correct for plant growth, but the light level will be insufficient unless your tank is extremely short. You would be better off getting either the marineland double bright, the marineland plant light, or the finnex fugue ray 2.
1260085
No this is not the same as the Reef Capable LED light. It has "3 watt RGB LEDs that provide 460nm blue, 660nm red, and green accent lighting to make your aquatic plants thrive." In addition to the the 1 watt 6,500K LEDs. The Marine Capable has "10000K white and actinic blue one watt LED". So the Marine capable has more of a bluer tint to it, which is more ideal for corals (I think?!? I dont have a salt water tank, so dont take my word on that). But I have heard the 6500K is better for freshwater plants, so thats why I got this one. My plants seem to be doing fine.
19363
The blue LED's emit more Ultra Violet light, that's why the Glofish reflect that "glowy" light. The issue is that blue light, and UV rays are harmful to our (human)eyes.Overall blue light looks nice, but exposure to it is harmful to the biochemical composition of the eyes.
264897
There are two types of UV light...you want the short wave not the long wave. The long wave UV is for disco dancing and makes you look silly--the short wave kills bacteria. UVc kills bacteria--it is short wave.
1199909
it is not listed as such, but the light is bright stark like daylight bulbs. It has the sharp shadows like a daylight bulb and is also listed for aquarium use. Hope it helps some.
542495
No, shouldn't be, and it sure cut back the algae. We've had ours almost a year now, so it's about time to change the bulb. I guess the UV part stops in about 11 months. The light may still be on, but it won't kill any algae.
1245032
The daylight bulb is 10kk the night one I don't recall, I can tell you I had this on a 90 gallon aquarium and it lit the tank very well for my needs, I would hesitate to use this if you have live plants in your aquarium though.
2137231
UV light is not visible to the human eye so you shouldn't expect to 'see' anything. The red light means that it should be working, and as others have mentioned if you do have green water you should see noticeable results within a few days.
131128
Yes it's broad spectrum (protects against UVA & UVB rays). It notes protection against both in the product description as well.
886543
I'm afraid I can't answer either question, since I don't know exactly what spectrum is needed to treat SAD. Nor do I know the lumens of the bulb. I do know, though, that I find it startling to look over in that direction (where the plants are) at night, because it seems as if the sun was out. Sometimes if I'm working beside that bulb I lose track of time and have no idea that the evening is so advanced because the light, well, it seems like daylight. Good luck!
620674
No. This light is mainly just to light up thr tank and show off the fish. I have the same tank and I am using this light as well as the current USA freshwater planted+ light. Look at that one because it will provide you with medium light.
2268154
No. LED lights and HID lights (HPS for example) emit a completely different UV spectrum. When flowering, HPS is fine by itself-as long as it is powerful enough.
549716
Yes.Although most plant prefer a "warmer" photo spectrum (red and yellow light more emphasis ) the fixture is full spectrum. You would probably REVERSE what most coral keepers do by running the blue light LESS and the full spectrum lights MORE to help you freshwater plants. Of course use of laterite in the gravel bed and a CO2 system ( very expensive and not necessarily needed ) will also help. I love to see a well planted freshwater tank with lots of schooling fish along with rockwork and wooden logs. To me they rival all but the best of saltwater reef tanks. I'm not kidding... heavily planted freshwater tanks are gorgeous! Yes.Although most plant prefer a "warmer" photo spectrum (red and yellow light more emphasis ) the fixture is full spectrum. You would probably REVERSE what most coral keepers do by running the blue light LESS and the full spectrum lights MORE to help you freshwater plants. Of course use of laterite in the gravel bed and a CO2 system ( very expensive and not necessarily needed ) will also help. I love to see a well planted freshwater tank with lots of schooling fish along with rockwork and wooden logs. To me they rival all but the best of saltwater reef tanks. I'm not... » Read More Yes.Although most plant prefer a "warmer" photo spectrum (red and yellow light more emphasis ) the fixture is full spectrum. You would probably REVERSE what most coral keepers do by running the blue light LESS and the full spectrum lights MORE to help you freshwater plants. Of course use of laterite in the gravel bed and a CO2 system ( very expensive and not necessarily needed ) will also help. I love to see a well planted freshwater tank with lots of schooling fish along with rockwork and wooden logs. To me they rival all but the best of saltwater reef tanks. I'm not kidding... heavily planted freshwater tanks are gorgeous! « Show Less
886544
No. The light spectrum is design for plant growth. Try Blue Max therapy lamps for SAD.
204175
This pdf seems to answer your question. Seems like the lamp uses a halogen lamp? http://www.public.health.wa.gov.au/cproot/1391/2/Ultraviolet_Radiation_from_Quartz_Halogen_Light_Sources.pdf
1900653
I found that if you have the dust and dawn mode in the e setting (a bright white sunlight with a rolling cloud cover though various color spectrums) that the light would flash bright when it went to the next color. The fish didn't like it. It seemed as if the light was trying to give the colors it wanted but the timer was cutting the power to the light causing it to flash bright colors when it went I the next color. I've found the dust and dawn mode to work best on one color setting. I leave mine on full spectum. The fish seem to like it and the dust and dawn mode lets them know it's time to wake up and time to settle down. It also reduces the stress on the fish from the light cutting on in one flash motion.