Question:“BATHROOMMASTER”produced heatingby infrared heating, didn’t it?but why will have a strong visible light? Because there is part of the energy is converted to visible light, right? whether can only produce infrared light as the infrared searchlight? In addition, I wonder if there is a way to generate heating with the infrared searchlight.

Answer: Very simple, “BATHROOMMASTER” heating element is the lamp, the lamp emission can not be done in the visible light (filament appeared dark red). It only produces infrared light
The lamp is open architecture, not in the bathroom of high humidity environment. can not stand the high humidity in the bathroom surroundings. Night vision system of infrared searchlight (by infrared LED) emitted infrared rays can also will be illuminated objects to heat up, but its power is very small,Each 5mm ir LED total power just only 30 MW, the infrared rays emitted by power within 5 to 10 MW,by that figuring, 100 pieces can only transmit 0.5W infrared.In contrast, “BATHROOMMASTER” each lighting power can reached 275W, the infrared emission power up around 200W. So People can not sense heat with the Night vision system of infrared searchlight. Of course, if you use high-power infrared LED, and increased in number When using this approach, the ir led strip also produces a hot.

Revert to Infrared LED light
Infrared LED light is an electromagnetic wave,The wavelength has a range of a few nanometers (1nm=10-9m) to 1 mm (mm).  a part of one’s wave band that It is a visible light in the human eyes.we could call it into visible light, visible light wavelength range of 380nm ~ 780nm, visible light wavelength from long wave band to short wave band divided into red, orange, yellow, green, cyan, blue, Wavelength is short than purple, we called it Ultraviolet rays . avelength is longer than red we called it infrared light.

Infrared light Applications：
The infrared led have a long historical standing. Uses. In 1962, People discovered how to form the Electromagnetic wave of infrared ray(using on GaAs on behalf of the III V compound semiconductor PN node that it could be phenomenon of Electromagnetic wave).The infrared led were used to . AlGaAsP class GaAs semiconductor materials to generate infrared ray , The forward voltage of ir led strip is about 3.3V.Ir emitting infrared ray. In generally refers to luminescence center wavelength of over 700nm LED. Much as a remote control and infrared light communication, distance sensor light source, a light source and a printer opt couplers hand piece light source etc.

The human eye could sense wavelength of light. The wavelength Is known as the main wavelength.and the peak wavelength is the wavelength of the spectrum. the wavelength corresponding to the energy of maximum value.For Blue ray as 470nm, green 520nm, yellow 570nm.due to the spectral distribution curve begins to rise just more fast. The wavelength remains sluggish when had a peak, the main wavelength integration two parts are mutually embedded to the main wavelength value ,so the main wavelength is longer than the peak wavelength;
With the example of the 589nm in yellow, orange light 605nm and red 630nm, we see that Those wavelength seems to start moving, smoothly and slowly beginning. over the peak after the more urgent the down, so the main wavelength is smaller than the peak wavelength . But anyway, the two difference is about 4nm.
To sum up:
*Wavelength of the main that Human eye could feel wavelength.
*Peak wavelength is the maximum wavelength at spectral energy distribution.
*The peak wavelength is short 5 nm than the length of the main wave.