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Features

  • Extremely bright. Best brightness in the industry.
  • High quality LED chips made by Epistar, one of the largest LED manufacturers in the world.
  • Consistency. One LED is a consistent color and brightness to the next in the package.
  • Long life. When operated correctly these LEDs should last at least 100,000 hours.

Helpful Information

Round LEDs

The stereotypical LED. This is the type that everyone thinks of when they think LED. This type of LED projects light in a narrow 15-30 degree cone of light. It’s great for projects which require focused light directly in front of the LED. Despite how common this LED type is projects are often better suited to using LEDs with a wider light dispersion angle.

Straw Hat LEDs

A type of LED which provides dispersed light in a 130-160 degree cone in front of the LED. The reason for the name straw hat should be obvious. The shorter lens creates much wider light dispersion than what’s typical with LEDs.

A Note on Brightness

LEDs are measured in mcd (millicandelas), not in lumens like typical lightbulbs. The difference is that a candela is a measure of brightness. A lumen is a measure of total light output. How bright a light is doesn’t tell you much about how much total light the source provides. A dimmer light which provides light over an extremely wide area could actually be putting more light out in total than an extremely bright focused light (like a laser beam.) This is why mcd ratings on LEDs can be misleading in some cases. The brightest LED doesn’t always put out the most light!

This translates to our round and straw hat LED types. Though the mcd rating is lower on the straw hat type the total light output between the two types is actually about the same. The straw hat is dimmer because the same amount of light is spread over a greater area.

To approximate the conversion between candelas and lumens we recommend this calculator.

Limiting Current

Using a 3V LED with a higher voltage source is a very common thing to do. For instance, connecting an LED to a 12V power source. There are several ways to handle this. The easiest and most common way is to use a current limiting resistor. We manufacture a resistor kit that’s ideal for this purpose. The appropriately sized resistor is simply placed between one of the legs of the LED and your power source and the LED becomes usable at that new voltage.

We recommend this calculator for determining which resistors to use with your LEDs.

Specifications

All LEDs

Current: 20mA

Round LEDs

Viewing Angle: 20-30 degrees

White
Volts: 3-3.2V
Color Temperature: 6000-8000K
Brightness (mcd): 20,000-25,000

Blue
Volts: 3-3.2V
Color Wavelength: 465nm
Brightness (mcd): 8,000-10,000

Green
Volts: 3-3.2V
Color Wavelength: 515nm
Brightness (mcd): 18,000-22,000

Red
Volts: 2-2.2V
Color Wavelength: 619nm
Brightness (mcd): 6,000-10,000

Yellow
Volts: 2-2.2V
Color Wavelength: 580nm
Brightness (mcd): 6,000-8,000

Straw Hat LEDs

Viewing Angle: 120-160 degrees

White
Volts: 3-3.2V
Color Temperature: 6000-8000K
Brightness (mcd): 2,200-2,600

Blue
Volts: 3-3.2V
Color Wavelength: 465nm
Brightness (mcd): 800-1,200

Green
Volts: 3-3.2V
Color Wavelength: 515nm
Brightness (mcd): 2,000-2,500

Red
Volts: 2-2.2V
Color Wavelength: 619nm
Brightness (mcd): 800-1,200

Yellow
Volts: 2-2.2V
Color Wavelength: 580nm
Brightness (mcd): 800-1,200