>
HEBEI I.T. SHANGHAI CO. LTD. LEDS (3)

I received another shipment of LEDs from Hebei I.T. Shanghai Co. Ltd. on 08-25-04.
The first page is right here, the second page is right here, the fourth page is right here, and the fifth page is right here if you're interested.

8mm Green LED, $0.41, www.hebeiltd.com.cn..., L8147LPG41C-AHV
(No minimum order required)
(Received and tested 08-25-04)
This is an 8mm LED in a water-clear epoxy case.
The light it outputs is a bright, slightly whitish green, with a dominant wavelength (where you would point to on a color chart) of approximately 524-527nm.

The beam that comes out of this LED consists of a slightly blotchy hotspot, surrounded by a slightly but noticeably dimmer penumbra, surrounded by a dim corona. This is fairly typical of non-phosphor 8mm and 10mm LEDs in clear packages with moderate viewing angles.

I do not have an instrument for measuring viewing angles, but in my estimation, the main beam is approximately 20° wide.


Intensity is 10,460mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 3.34 volts across this LED.




5mm Blue LED, $0.44, www.hebeiltd.com.cn..., L5B47VB5C-D2-AHV
(No minimum order required)
(Received and tested 08-25-04)
This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a vibrant blue, with a dominant wavelength (where you would point to on a color chart) of approximately 466-470nm.

The beam that comes out of this LED consists of a slightly blotchy annular hotspot, surrounded by a slightly but noticeably dimmer penumbra, surrounded by a dim corona. This is fairly typical of non-phosphor 5mm LEDs in clear packages with moderately wide viewing angles.

I do not have an instrument for measuring viewing angles, but in my estimation, the main beam is approximately 45° wide.


Intensity is 1,560mcd at a forward current (If) of 26mA.
According to the manufacturer, this should be 2,000mcd - my light meter very likely loses sensitivity in the blue region of the spectrum.
Remember, wider viewing angles always give lower mcd values.
Forward voltage (Vf) is 3.57 volts across this LED.




5mm Green LED, $0.33, www.hebeiltd.com.cn..., L5T47LPG41C-D1-AHV
(No minimum order required)
(Received and tested 08-25-04)
This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a slightly whitish green, with a dominant wavelength (where you would point to on a color chart) of approximately 524-527nm.

The beam that comes out of this LED consists of a wide hotspot, surrounded by a dim corona. This is fairly typical of non-phosphor 5mm LEDs in clear packages.

I do not have an instrument for measuring viewing angles, but in my estimation, the main beam is approximately 20° to 25° wide.


Intensity is 5,680mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 3.10 volts across this LED.




5mm White LED, $0.21, www.hebeiltd.com.cn..., L5B47UWC-D1-AHV
(No minimum order required)
(Received and tested 08-25-04)
This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a cool white, with a very slightly purplish color. Estimated color temperature is 7,000°K.

The beam that comes out of this LED consists of a very wide hotspot, surrounded by a dim corona. This is fairly typical of phosphor-type wide-angle 5mm LEDs in clear packages.
The beam from this LED is remarkably smooth and even, with no blotches, blue rings, or other evil little things in there.

I do not have an instrument for measuring viewing angles, but in my estimation, the main beam is approximately 50° to 60° wide.


Intensity is 2,470mcd at a forward current (If) of 26mA.
Remember, wider viewing angles always, always give lower mcd values.
Forward voltage (Vf) is 3.52 volts across this LED.




10mm White LED, $0.55, www.hebeiltd.com.cn..., L8347VW5C-AHV
(No minimum order required)
(Received and tested 08-25-04)
This is a 10mm LED in a water-clear epoxy case.
The light it outputs is a cool white, with a very slightly purplish color. Estimated color temperature is 7,000°K.

The beam that comes out of this LED consists of a wide hotspot, surrounded by a dim corona. This is fairly typical of phosphor-type 10mm LEDs in clear packages.
The beam from this LED is remarkably smooth and even, with no blotches, blue rings, or other evil little things in there. There is a faint ring within the hotspot itself, but it is not at all bothersome.

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


Intensity is 4,780mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 3.43 volts across this LED.




5mm Green LED, $0.33, www.hebeiltd.com.cn..., L5B47LPG41C-D2-AHV
(No minimum order required)
(Received 08-25-04, tested 08-26-04)
This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a bright, slightly whitish green, with a dominant wavelength (where you would point to on a color chart) of approximately 524-527nm.

The beam that comes out of this LED consists of a central hotspot, surrounded by a slightly but noticeably dimmer penumbra, surrounded by a dim corona. This is fairly typical of non-phosphor, wide-angle 5mm LEDs in clear packages.

I do not have an instrument for measuring viewing angles, but in my estimation, the main beam is approximately 65° to 70° wide.


Intensity is 4,590mcd at a forward current (If) of 26mA.
Remember, wider viewing angles always equal lower mcd values.
Forward voltage (Vf) is 3.34 volts across this LED.




5mm Red LED, $0.10, www.hebeiltd.com.cn..., L5T34VE6C-D2-AH
(No minimum order required)
(Received 08-25-04, tested 08-26-04)
This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a bright, slightly orangish red, with a dominant wavelength (where you would point to on a color chart) of approximately 622-626nm.

The beam that comes out of this LED consists of a smooth, wide central hotspot, surrounded by a dim corona. This is fairly typical of non-phosphor 5mm LEDs in clear packages. There are no rings, blotches, or other evil little things in this LED's beam.

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


Intensity is 3,860mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 1.97 volts across this LED.




5mm Red LED, $0.10, www.hebeiltd.com.cn..., L5T34VE6C-AHV
(No minimum order required)
(Received 08-25-04, tested 08-26-04)
This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a bright, slightly orangish red, with a dominant wavelength (where you would point to on a color chart) of approximately 625-630nm.

The beam that comes out of this LED consists of a central hotspot, surrounded by a slightly but noticeably dimmer penumbra, surrounded by a dim corona. This is fairly typical of non-phosphor 5mm LEDs in clear packages.

I do not have an instrument for measuring viewing angles, but in my estimation, the main beam (hotspot and penumbra) is approximately 20° to 25° wide.


Intensity is 5,040mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 2.03 volts across this LED.




5mm Red LED, $0.05, www.hebeiltd.com.cn..., L5T47HURC-A
(No minimum order required)
(Received 08-25-04, tested 08-26-04)
This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a bright, very slightly orangish red, with a dominant wavelength (where you would point to on a color chart) of approximately 630-635nm.

The beam that comes out of this LED consists of a squarish central hotspot, surrounded by a slightly but noticeably dimmer circular penumbra, surrounded by a dimmer yet sub-umbra (dimmer than the penumbra, but brighter than the corona), surrounded by a dim corona. This beam configuration is fairly typical of non-phosphor 5mm LEDs in clear packages.

I do not have an instrument for measuring viewing angles, but in my estimation, the main beam (hotspot and penumbra) is approximately 15° to 18° wide.


Intensity is 3,540mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 2.11 volts across this LED.




5mm Amber LED, $0.06, www.hebeiltd.com.cn..., L5T47VY3C-D2-AH
(No minimum order required)
(Received 08-25-04, tested 08-26-04)
This is a 5mm LED in a water-clear epoxy case.
The light it outputs is a bright amber-yellow, with a dominant wavelength (where you would point to on a color chart) of approximately 584-587nm.

The beam that comes out of this LED consists of a squarish central hotspot, surrounded by a slightly but noticeably dimmer circular penumbra, surrounded by a dim corona. This beam configuration is fairly typical of non-phosphor 5mm LEDs in clear packages.

I do not have an instrument for measuring viewing angles, but in my estimation, the main beam (hotspot and penumbra) is approximately 20° to 25° wide.


Light color is significantly less reddish than this photograph makes it appear.
Intensity is 3,790mcd at a forward current (If) of 26mA.
Forward voltage (Vf) is 2.17 volts across this LED.




All 3mm, 5mm, 8mm, and 10mm Hebei I.T. Shanghai Co. Ltd. LEDs were powered with a Hosfelt Electronics LED tester, outputting a known current of 26mA from the receptacles the LEDs were tested in.
High-flux ("spider") LEDs were powered with a Mid-Eastern variable voltage, current-clamping power supply, with the current set to the individual LED under test.



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
Spider (Pirrahna) LEDs
SMD LEDs
True violet (400-418nm) LEDs
Agilent Barracuda & Prometheus LEDs
Oddball & Miscellaneous LEDs
Programmable RGB LED modules / fixtures
Where to buy these LEDs 
Links to other LED-related websites
The World's First Virtual LED Museum
Legal horse puckey, etc.
RETURN TO OPENING/MAIN PAGE
LEDSaurus (on-site LED Mini Mart)



This page is a frame from a website.
If you arrived on this page through an outside link,you can get the "full meal deal" by clicking here.