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New 100W-equivalent LED Bulb Only Uses 16W of Power

Unlike traditional incandescent bulbs, LED bulbs give improved energy efficiency, brilliant light and can last for years. California-based Switch Lighting announced its 100 watt-equivalent LED bulb at the 2011 LIGHTFAIR International Trade Show in Philadelphia this week.

Switch Lighting claims to be the first company to introduce a true 100W-equivalent A19 incandescent replacement bulb that produces 1700 lumens in neutral white. Only 16W of power is consumed to obtain the 100W-equivalent, with an efficacy of 100 lm/W. The bulbs are dimmable, completely recyclable and have an average lifetime of 20,000 hours, that’s much better than the 1000-hour lifespan of an incandescent bulb, and 10,000-hour lifespan of a toxic mercury-filled Compact Fluorescent (CFL).

The bulb is equipped with technology that allows for maximum brightness with fewer LEDs by creating a self-cooling environment inside the bulb. As the bulb warms, the dome is filled with a nontoxic liquid that flows out towards the surface of the bulb and draws heat away from the LEDs. The heat is then able to dissipate evenly over the surface of the bulb and the liquid is drawn back in to repeat the process.

While there is no fixed price yet, Switch Lighting said its LED bulbs will cost much less than existing LED bulbs. An estimated figure of $20 to $25 for the company’s 75 watt equivalent bulb was given, which is much lower than other LED replacement bulbs currently available. Switch Lightbulbs will be available later this year and the company says it will also offer a warm white version of the 100W-equivalent bulb in late 2012.



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  1. So it’s light temperture is completely different from a traditional bulb?
    This is going to be the main problem for people as it changes how the room looks.

  2. Wow, what an incredibly ugly bulb!!!!!!!!!! Nice job making that heat sink blend in so well. If LED is so efficient and supposedly gives off less heat than any other type of bulb, why such a huge heat sink?  By comparison, a regular incandescent bulb is a thing of beauty.

    • @Mike That’s just a cutaway render I believe.  The actual bulb will have a soft white look so as not to appear it was made in a mad scientists lab, but still the heatsink is there. I think those twisted tube CFLs are uglier.

    • tungsten bulbs radiate heat as light and infrared. But LEDs give off heat from the semiconductor device like the cpu in your computer. This has to be moved via a conductive heatsink.

      LEDs hate heat and stop working if they get hot. Tungsten bulbs don’t.

      • What temperature do they have to reach in order to shut off? 

        • A lot less than a tungsten bulb.

          Core LED devices itself can’t stand more than ~80-90C. But their data sheets show the lifespan drops quite a bit at these maximums. So the cooler the better.

          Put several in close proximity to each other within a glass sphere and heat becomes a very serious issue. Hence the large heatsinks on these ‘light-bulbs’.

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