LED lighting teardowns

LED-based lighting is still far from a mainstream technology, and its designs are in flux. Early SSL products are making their way onto store shelves and into inventory. LED lighting teardowns: Five lighting designs that illuminate the future of lighting article shows product examples that can indicate what direction SSL design will take, at least in its early stages.



  1. Eric Lee says:

    Also consider SMD LED technology. They are much more efficient that refractor LED bulbs.

  2. crossbow says:

    LED is the future for sure

  3. Tomi Engdahl says:

    Samsung LED light bulb teardown includes objective dimming numbers

    Notice that the incandescent bulb (yellow line) does not dim linearly with power. It’s main achievement is that it does dim down to zero. A CFL does a better job of dimming with power, and the Samsung LED light is very good, dimming quite linearly with power. However, it drops out at just under 20% of its max output light. (Which, however, more than meets the L-Prize spec.)

  4. Tomi Engdahl says:

    Teardown: LED touch controllers & PSU

    Most of my house lighting is now LED-based, and most of that uses various shapes and sizes of incandescent bulb replacements. But for a few cases, I’m using pure LED designs – in particular – white and RGB strips. These require power supplies and, optionally, controllers. Keep reading as I open up a few examples I bought straight from Chinese distributors.

    I decided to try building something futuristic: a white plexiglass sheet backed with LED strips, and with touch controls for brightness.

    My plan was to build µC-based touch controls from scratch, but I couldn’t resist taking the easy route after discovering LED touch controllers for under $20 (USD), shipped.

    When I discovered the line of touch dimmers, amidst the various styles of single-channel and RGB models, was, sure enough, one that fades between cool and warm white. So, that’s what I bought…just in case. It cost no more than a single-channel unit.

    The main board’s µC or ASIC here has been obfuscated, but a bit of tracing might reveal its basic identity (a PIC perhaps).

    To make my crazy plexiglass design work, I’ll also need a power supply. Here’s what I sourced for about four bucks

    Based on a bit of circuit tracing, I’d guess it’s a simple flyback design. In fact, there’s no obvious control chip at all, unless it’s masquerading as a transistor or optocoupler.


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