Is this light 420 to 480 nm as dentists use
1465599
Mine never worked well. Used it once and threw it away. It's very cheaply made, but the light nm is not mentioned anywhere.
1465600
I do not know I bought this for my daughter and she loves it and says it works:)
886544
No. The light spectrum is design for plant growth. Try Blue Max therapy lamps for SAD.
1892051
I bought the light and it is plenty bright. I think the true output is 520.The spot is very tight ans so using it to walk the dog is iffy. I added a removable diffuser to the lense. Another poing is that to turn it on you turn a knob. (Not what you expect).
1764232
To my knowledge, it is 4200 K with a light output of 3350 +/- 300 lumens. Higher temperatures do not mean brighter bulbs. Higher temperature bulbs put out less light.
677963
Don't know where they are getting 216. Maybe adding the hi/med/low? It's not 216 on high. It is 180 lumens on high setting. It's a great flashlight. My original got ran over in Afghanistan and it still works great. I had to straighten the threads but no big deal. I've also accidentally washed it in my jeans pocket with no issues.
1817759
I would think it would be common sense to believe the website. LED Lensers are under rated. My M7R is as bright as a 600 lumen Streamlight.
2000108
No, it's not a bad thing. Yes it's lower than 500nm but that doesn't mean it's not safe. This blue light is similar in wavelength to the sky itself, so it's like looking at blue sky (though NOT looking at the sun of course). I would be (and am) far happier using a lower power blue light than a high power white light which also contains the same blue wavelengths. You probably know that sunlight contains all the colors of the rainbow so it's best to think of this blue light as a safe kind of sunlight with all the other colors taken out because they're not needed. At night, for good sleep, you want to BLOCK as much blue light as possible so that your melatonin (the sleep hormone) ISN'T suppressed. The best way to do that, if you don't want to go back to evenings with only candles for light and no televisions or computers, is to wear glasses like these Orange glasses for the last 2-3 hours before you go to bed. They look silly but if you're having problems with energy/sleep they can have a miraculous effect literally overnight. Nothing, and I mean nothing, has affected my sleep as much. Not expensive beds, or prescription sleeping pills, or exercise. Nothing. They are worth their weight in gold :-) Does that help? I hope so.
340199
I don't believe so. Your mouth is closed on the mouth tray, so light only penetrates the front where you put the gel.
266841
John, This particular Light uses 5500k leds only. It has a gel holder built on the front, if you need to change to 3200k or match any flourescent flavor. It includes a couple hard plastic color filters but they are not accurate, they only get you close. The actual leds used are exactly daylight if you measure it on a Nikon d800 then analize the image in photoshop. Hope This helps, Mike
310046
Hi, It is a single teeth whitening light, not include whitening gel, thank you.
544422
I am going on a complete guess here based on the description people are giving. I would say that it is about 4900k. That is, slightly warm but nearly pure white. I don't own this light so I can't say for sure.It at least doesn't have the blue/purple white tinge that cheap white LEDs tend to have.
1487269
No. This light projects light at Light Spectrum: 460nm, 610nm, 630nm, 730nm;(according to the manufacturer), which is ideal for plant growth. Ultra violet light is lower on the spectrum, 10-400nm (according to wikipedia).
1176688
It's a 11W Germicidal UV lamp that is supposed to be 254nm. Hope this helps
125444
I doubt led can output UV for plants and I would say the spectrum is 4100 K.
2250501
Low---one, high---2, there is no medium, strobe---not sure if you really want to know buy it and you look into it, as a head light I do not believe there is anything brighter. Great product, the battery pack will hold its charge for months if not connected. I am a distance kayaker this is great for setting up at night.
253755
Amanda, I know that it provides 3780 lumens, however, I do not have any photometric information at this time. That factory is in the process of moving, but if I can get anything further from them I will get back to you. Sorry -- Barry
106987
Low like, easy corals. You should look at getting the 48-60" version or finding another light that uses true 5w leds.