How many joules/cm^2 does this emit? Previous answer was incorrect. Nanometers refers to the wavelength (color). A joule is a measurement of energy.
1458499
I never received my light. I tried to inquire and never got an answer. Sorry - no help.
1793665
I tested it against other emfmeters.No documentation is available. I suppose it measures V/m for low frequencies waves, not. radiofrequencies.It worths price se paid!
1693288
The td meter is optional. There are variables that affect the strength of the finished product like water temp and whether you are using batteries or plugging the unit in. If you want to know for sure what the strength of the colloidal use a meter.
1433088
I am not sure what the standard/norm is regarding how far the meter should be from the light source, but I would think you put the meter right up to the lens of the flashlight. Light output decreases exponentially with distance (proved in the experiment for which I bought the meter,) but I think that anywhere from touching the lens to maybe an inch out will give you a proper reading. I would put both the flashlight and the meter sensor on fixed surfaces, then look at the reading on the LCD display. Oh, and this is important: do it in a VERY dark room. The ambient light will make a difference. I am not sure what the standard/norm is regarding how far the meter should be from the light source, but I would think you put the meter right up to the lens of the flashlight. Light output decreases exponentially with distance (proved in the experiment for which I bought the meter,) but I think that anywhere from touching the lens to maybe an inch out will give you a proper reading. I would put both the flashlight and the meter sensor on fixed surfaces, then look at the reading on the LCD display. Oh, and this is important: do it in a VERY dark room. The ambient light will make a difference.
2228834
I have not measured it using a "actual usage" meter, but mine is a 65W and having researched it I remember other people reporting the very same thing. I am using this light for Aquarium purposes and so for me the actual wattage is not what is important...it is the actual lumens produced and the color in Kelvins that makes the difference. For my aquarium uses, I found this bulb to produce outstanding results.
212990
There will be heat coming from the lamp due to the flow of photons in this portion of the electromagnetic spectrum. However, UV-C may, under some conditions be visible, but you should not look at the light directly at all. A photometer can be purchased at a very reasonable price that will positively confirm the devices function and they can be purchased on Amazon and can tell you how well your device is working. I hope this helps.
722620
Hi Dr Victoria,Treatment Area: 14cm squaredWave length of light emitted: 630 nmJoules per minute: 12Joules per 4-minute treatment cycle (self timed): 48I hope that helps.
873978
Nope. Real RF meters measure at MW per square meter. This only reads RFs at MW per square centimeter.
402252
From what I have read these meters do not accurately measure LEDs. I have LED lights and the meter reads 4500 to 7000 lumens but as you say that is a focused spectrum. My plants spend part of the day in natural light and the readings are much higher in the greenhouse.
754158
As best I understand the question, this sort of comparison is just what the meter is meant to do: measure light intensity. What you read is what you got. Regards,AC
1915641
I must confess that I do not possess a meter to measure lumens. I can, however, assure you that any flashlight being operated by a 3.7 V battery will have a startling effect when suddenly switched on. I am more than satisfied with the capability of my unit. If you purchase one and find yourself dissatisfied with the intensity of the light, you can always return it. I hope my comment will assist you in your decision. Have a nice day, Steve
1547942
I buy a luxmeter of this brand and capacity, and has the ability to measure light from 0.1 lux to 200,000 lux, divided into 4 types of measurement ranges.
1310582
Tech specs say: 12 joules/ minute. My web search says this = .2 joules/sec = 200mW, treatment cycle = 4 minutes for 48 joules. Hope this helps.
1460010
It is the measure of energy being converted from your body to the pedals. A Watt is equal to one joule per second. The higher the Watts the more calories burned and it also helps build muscle.
239226
Don't know the exact joules number but it's for small electronics like a phone or answering machine, not a computer or stereo. hope that helps.
930332
it can measure mA to see if you have a car battery drain.. I believe it can read mV as it goes several decimal places when evaluation AA and AAA batteries
1985091
This meter will read to 0.01 volts in the lowest setting which is from 0 to 200 volts. A small 1" square solar cell will only output a few volts even in maximum sunlight. Meter may only be accurate within +/- 0.2 volts however.