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I received several discrete LEDs and high-powered LED modules (high power LED and driver assemblies together). I will post all of them to this page, starting with the bare LEDs.

5mm Golden White LED, $TBA, www.ledsales.com.au
(Received 09-03-04, tested 09-04-04

This is a 5mm LED in an orange, transparent epoxy case.
The light it outputs is a whitish, "strong urine yellow", with a dominant wavelength (where you would point to on a color chart) of approximately 580-585nm. Note that this LED has a broadband emission, as it is a phosphor-based component. The wavelength range I specified is how the eye might perceive it.

The beam that comes out of this LED consists of a smooth central hotspot, falling off gracefully into a dim outer corona.

I do not have an instrument for measuring viewing angles, but in my estimation, the main part of the beam is approximately 25 to 30 wide.


Intensity is 3,880mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 3.84 volts across this LED.




5mm Warm White LED, $TBA, www.ledsales.com.au
(Received 09-03-04, tested 09-04-04

This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a slightly pinkish white, reminescent of the light produced by warm white fluorescent light bulbs. The color temperature appears to be approximately 3,800K.

The beam that comes out of this LED consists of a smooth central hotspot, falling off gracefully into a dim outer corona.

I do not have an instrument for measuring viewing angles, but in my estimation, the main part of the beam is approximately 18 to 22 wide.


Intensity is 7,700mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 4.09 volts across this LED.
That voltage seems a bit high, let me go remeasure that...BRB...4.05 volts this time.



5mm Hot Pink LED, $TBA, www.ledsales.com.au
(Received 09-03-04, tested 09-04-04

This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a slightly purplish, intense hot pink. I am not equipped for measuring nm values or estimating color temperatures of a non-white source, so I have no values to provide.

This LED appears to have an inorganic phosphor formulation. The seller connected one and left it running for a week with no color change or other degradation. I cannot verify this for myself though, as I only have one of these LEDs. I'd need at least two of them - one for the experiment itself, and one to use as a control sample for comparative analyses.

The beam that comes out of this LED consists of a smooth central hotspot, falling off into a soft, more reddish perimeter, then more abruptly falling off into a dim outer corona.

I do not have an instrument for measuring viewing angles, but in my estimation, the main part of the beam is approximately 10 to 12 wide.


Intensity is 1,490mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 4.05 volts across this LED.



High Powered Yellow/Amber LED Module/Acrylic Column, $TBA, #SLN-A135, www.ledsales.com.au
(Received 09-03-04, tested 09-04-04

This is a high powered LED and driver assembly, with a water-clear acrylic column that has vertical bars in it to help diffuse the light.

This module is made by Ramtronics out of Taiwan.

The light it outputs is a yellow-amber color, with a dominant wavelength (where you would point to on a color chart) of approximately 585-590nm.


Here is a photograph of the LED and driver assembly itself.
The acrylic portion is approximately 1.95" tall by 0.75" in diameter.
The metal base has two screw holes positioned approximately 1.35" apart.

This module is designed to be operated at 4.5 volts DC; if you exceed 6.0 volts DC, you might let all the magic smoke out of it and it will no longer function.

There are two slots on the underside of the base for the wires to go, so it will screw down flush with whatever surface you mount this to.


Forward current (If) is 398mA with a forward voltage (Vf) of 4.71 volts.


Spectrographic plot
Spectrometer plot of this LED module.
Ocean Optics USB2000 Spectrometer on loan from WWW.TWO-CUBED.COM.



High Powered Red LED Module, $TBA, #SLM-R105, www.ledsales.com.au
(Received 09-03-04, tested 09-05-04

This is a high powered LED and driver assembly, with a lens on the business-end to focus the beam into a very tight spot.

This module is made by Ramtronics out of Taiwan.

The light it outputs is a very slightly orangish red color, with a dominant wavelength (where you would point to on a color chart) of approximately 630-635nm.


Here is a photograph of the LED and driver assembly itself.
The metal base has two screw holes positioned approximately 1.35" apart.

This module is designed to be operated at 4.5 volts DC; if you exceed 6.0 volts DC, you might let all the magic smoke out of it and it will no longer function.

There are two slots on the underside of the base for the wires to go, so it will screw down flush with whatever surface you mount this to.


Forward current (If) is 365mA with a forward voltage (Vf) of 2.74 volts.
Measures 151,200mcd with a drive current of 365mA.
This is a VERY GOOD value for a red LED.
IMPORTANT: The beam is not yellow like this photograph makes it appear.

I am not equipped to measure beam angles, but this module appears to have a 3 to 6 beam. This is quite narrow, as LED beams go.


Spectrographic plot
Spectrometer plot of this LED module.
Ocean Optics USB2000 Spectrometer on loan from WWW.TWO-CUBED.COM.



And here's a photograph of this module's beam approximately 5 feet away.
Again, the center of the beam is not yellowish.



High Powered White LED Module, $TBA, #SLM-W101, www.ledsales.com.au
(Received 09-03-04, tested 09-05-04

This is a high powered LED and driver assembly, with a lens on the business-end to focus the beam into a very tight spot. This module has a "gear-shaped" body, with no screw holes or other mounting devices on it. It measures 1.0" in diameter, 0.48" tall. It is smaller than the other modules, so it can be used in flashlights (torches) - in fact, I believe it was made for that purpose.

This module is made by Ramtronics out of Taiwan.

The light it outputs is a slightly bluish white color, with an estimated color temperature of approximately 6,600K.


Here is a photograph of the LED and driver assembly itself.
The metal base has two screw holes positioned approximately 1.35" apart.

This module is designed to be operated at 4.5 volts DC; if you exceed 6.0 volts DC, you might let all the magic smoke out of it and it will no longer function.


Forward current (If) is 391mA with a forward voltage (Vf) of 5.22 volts.
Measures 131,000mcd with a drive current of 391mA.


I am not equipped to measure beam angles, but this module appears to have a 5 to 8 beam. This is quite narrow, as LED beams go.



And here's a photograph of this module's beam approximately 5 feet away.



IMPORTANT: While LEDSales.com.au might be in Australia, they will ship planetwide, so please don't let their location throw you off.




Do you manufacture or sell an LED flashlight, task light, utility light, or module of some kind? Want to see it tested by a real person, under real working conditions? Do you then want to see how your light did? If you have a sample available for this type of real-world, real-time testing, please contact me at ledmuseum@gmail.com.

Please visit this web page for contact information.

Unsolicited flashlights appearing in the mail are welcome, and it will automatically be assumed that you sent it in order to have it tested and evaluated for this site.
Be sure to include contact info or your company website's URL so visitors here will know where to purchase your product.



WHITE 5500-6500K InGaN+phosphor 
ULTRAVIOLET 370-390nm GaN 
BLUE 430nm GaN+SiC
BLUE 450 and 473nm InGaN
BLUE Silicon Carbide
TURQUOISE 495-505nm InGaN
GREEN 525nm InGaN 
YELLOW-GREEN 555-575mn GaAsP & related
YELLOW 585-595nm
AMBER 595-605nm
ORANGE 605-620nm
ORANGISH-RED 620-635nm
RED 640-700nm
INFRARED 700-1300nm
True RGB Full Color LED
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Agilent Barracuda & Prometheus LEDs
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