LED Luminaries

LED news and insight from our technology editor Steve Bush, who has been messing with LED lighting for more years than he would care to remember.

An an LED to compete with 75W light bulbs

cree 1500 lumens.JPGUsing a multi-chip package, Cree has developed an LED that will compete with 75W light bulbs, writes Technology Editor Steve Bush.

It is called the XLamp MPL, and the 12x13mm device will eventually deliver up to 1,500 lm at 750mA, which is 75 lm/W.

Each device has three strings of eight die and at 750mA, 250mA per string, forward voltage is typically 26.5V.

He writes:

Colour binning has been simplified, under the firm’s EasyWhite brand, by offering the LEDs in 2,700, 3,000, 3,500 and 4,000K colour temperatures that are in the centre of the respective ANSI C78.377-2008 bins.

Read the full article >>

Tags: forward voltage, leds, multi chip package, technology editor, three strings

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2 Comments

  1. David
    March 18, 2010 11:58

    Looks like the dissipation of this device will be around 20W which is about of 1/4 of the standard 75W light bulb. I thought that LED technology would be a lot more efficient?

  2. grant_ingenex
    March 08, 2010 16:00

    This is bigger news than it may seem on the surface.
    Although the full potential of LED applications extend far beyond competing with 75W light bulbs, these steps are very necessary in the consumer adoption process.
    As we are able to replace more every-day lighting applications with LEDs, more consumers will begin to adopt. Developing these kind of replacements is a large step towards wide-spread integration. Keep them coming LED manufacturers!

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