LED Category ImageIn striving to be your top LED Supplier, LEDSupply offers High-Power LED components of various sizes, shapes, colors and brightness. We feature High-Power Surface Mount Device (SMD) LEDs from top brands like Cree, Nichia and Luxeon, as well as discrete 5mm LEDs. Our goal is to supply customers with great LED components at an affordable price, that is why we are always careful to select high quality bins from our top manufacturers, making sure you get the most Lumens and the best colors while keeping the forward voltage low, so we can guarantee the best efficacy possible. For more LED specific information see below.

Cree LEDs
Cree XLamp High Power LEDs
Luxeon LEDs
High-Brightness LEDs by Luxeon
5mm LEDs
White, Red, Green, Blue, UV, IR & more
Nichia LEDs
157 Nichia LED Mounted to FR4 Board
Osram Golden Dragon LEDs
850 IR Osram High Power LED
Color High Power LEDs
Red, Amber, Green, Blue, Royal-Blue & more
White High Power LEDs
High Power LEDs Sorted by Color Temperature
Super Bright LEDs
High Power LEDs Sorted by Brightness (Lumens)

General Information on LEDs


LED Binning Explained

CAT Binning Code
A Flux Bin
B Color Bin
C Forward Voltage Bin

In the manufacturing of LEDs there is a variation of performance around the average values given in the technical data sheets. This means that in the manufacturing process the color, flux (brightness), and even forward voltage of the LEDs can be different from production run to production run. For this reason, manufacturers bin the LED components for these three areas in order to tell specifically what that LEDs characteristics will be and so that applications that need all the same LEDs make sure to purchase LEDs that are the same bin.

The LED data sheets will show you what the bin number means so you can search for bins that are just right for you. Here at LEDSupply we try to pick the bins with the highest flux and lowest forward voltage as this will make sure they are the most efficient possible. We always make it a priority to try and provide customers with the same binned LEDs so that there are no variations in the LEDs they get.

LED emitters are labeled using a three to four digit alphanumeric code (CAT code) showing the bin values for emitters packaged on a single reel. All emitters packaged within a reel are of the same 3-variable bin combination. To the right is an example of the CAT code layout.


Incandescent Wattage to LED Lumen Comparison Chart
Incandescent Wattage Lumens
25W 230-270
40W 440-460
60W 800-850
100W 1600

(A) Flux Bin - LED Brightness

LEDs are the brightest lighting solution out there. In terms of brightness, LEDs are measured in Lumens. A lumen is a scientific unit measuring luminous flux or the total amount of visible light from a source. The amount of light (Lumens) you can get out of an LED depends on how much current you supply to it, this is measured in milliamps (mA) or amps (A). Here are Lumens in the sense of 25, 40, 60 and 100 watt incandescent bulbs, in-case you want to switch to LEDs while keeping a similar amount of Lumens.


(B) Color Bin - Correlated Color Temperature & Color Wavelengths

Color Wavelength WheelLEDs allow for a variety of different color white. Correlated Color Temperature (CCT) is the process of creating different white light at different temperatures. Color temperature is specified in degrees Kelvin (K), which is a temperature scale in which zero occurs at absolute zero and each degree equals one Kelvin. The lower temperatures from 2,500K to 3,500K tend to be a warmer white, like what we are accustomed to for in-home lighting. Neutral White is around 4000K to 4500K whereas the higher temps 5,000K+ are the cool whites.

LEDs are also great in a variety of colors. What changes the colors is the wavelength in nanometers (nm). See our table below for what colors are made from which wavelengths.


Color - Wavelength (nm) Table
Color UV-C UV-B UV-A Violet Royal-Blue Blue Cyan Green Amber Red-Orange Red Deep-Red IR-A
nm 100-280 280-315 315-400 400-440 440-460 460-490 490-520 520-580 580-590 590-617 617-627 627-670 800-1400


(C) LED Forward Voltage & Powering LEDs

LEDs are unlike other traditional lights where higher voltages produce brighter light. This is important to know when working with LEDs as most power supplies are made to regulate voltage, not current. Just connecting an LED directly to a standard DC voltage regulated power supply will destroy the LED, as the power supply will provide way more current than what the LED is rated for as current is not regulated by the power supply.

This is why you need a constant current LED driver between the DC power supply and the LED. The driver then regulates current to the LED and is never allowed to exceed the maximum current rating of the LED. All you have to do is find the driver that will provide your LEDs with the current they are best run at, this is easy to find by looking at our LED product pages. In terms of the power supply, the output voltage needs to be at least a few volts higher than the forward voltage rating of the LED(s) you wish to run.

Understanding All Types of LEDs

LEDs are available from us in a large variety of shapes and sizes for a plethora of different applications, sometimes making the LED select process a daunting task. To assist in understanding our LED products and how they can be applied to your specific lighting application, we published a comprehensive guide to help you make the switch to LEDs.


LED Glossary
LED wattage explained?
LED Star: Coined by LumiLEDs Luxeon with the Luxeon I, III and V LEDs because the LED was re-flowed onto a hexagonal shaped 'star' metal core printed circuit board.

MCPCB: Metal Core Printed Circuit Board. For ease of use, surface mount LEDs are permanently secured 're-flowed' onto a printed circuit board, which is insulated and contains conductive tracks for circuit connections; the printed circuit board is on a metal core heatsink.

Re-Flow LED Soldering: Surface mount LEDs are temporarily combined with a thin mask of solder paste to contact pads on a MCPCB and conveyed through a re-flow oven with controlled heat, melting the solder, and permanently attaching the LEDs.

1-Up or 3-Up Star LED: An LED Star with either 1 or 3 LEDs. The LEDs on the 3-Up star are connected in-series via a zero ohm resistor (jumper).

Lumens: A measurement of the total amount of visible light emitted from a light source.

Forward Voltage: The voltage at which current starts to flow in the normal conducting direction.

HB LED: High-Brightness LED. LEDs with minimum drive currents of 350mA.

COB LED: Chip On Board LED. Also referred to as high-density (HD) LED arrays, where hundreds of die are packed into the light emitting surface (LES).
Wattage is determined by the drive current (in amps) multiplied by the forward voltage at the drive current. Ten years ago when Lumileds released the Luxeon I (350mA) and Luxeon III (700mA), commonly referred to as 1-watt and 3-watt LEDs, the forward voltage were such that the LEDs were approximately 1-watt and 3-watts respectively. However, 2014, the forward voltages of LEDs have decreased enough that 350mA, 700mA and 1000mA drive currents no longer produce the same wattage. For example, a Cree XP-G2 at 1000mA is 3-watts, where the Luxeon III at 700mA would have been approximately 3-watts.
More Helpful Content on LEDs
We at LEDSupply try not just to supply LEDs, but do our best to help educate those that wish to learn more. We are constantly publishing LED related content to our BLOG and here below are a few posts you might be interesting in reading.
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