4 comments on “The simple things

  1. I always thought soldering was 90% about flux. You appreciate flux a lot more when you’re not soldering things that are not factory shiny new.

    Anyways, real question. How do you find the RGB created “white” for being able to see tiny details and how is it on eye strain?

    I am um-ing and ah-ing about buying some semi expensive whites with a high CRI. The thing that has stopped me pulling the trigger is I will have to mount and solder them all myself. The pre made chinese RGB strip looks so tempting when faced with that.

    • The RGB strip has the advantage of coming with a driver which can store six preset colours — I stored three levels of two different colour temperatures in mine. With a 40cm wide source, the only time I see the individual R/G/B components is in specular reflections.

      The spectrum emitted by these RGB strips is alright. I wouldn’t do photographic proofing under this light, but it works fine for low-chroma-detail things like “solder the brown wire to the other brown wire”, and “wait until the timer reads 3:14, then cut the blue wire”. Luckily for me, the PWM frequency of the driver is just above my flicker fusion threshold, but those with superhero eyesight might end up straining.

  2. KK.

    I was looking at some of the LEDs from Luminius Devices (you should at least like the name)

    These bad boys are $9 but they pump out 700lm so shouldn’t need too many of them and they have a CRI of 95.


    Just have to mount them yourself :(

    LEDEngine have some guys with a CRI of 98 they spec as being for “museums and art galleries” but they are MOQ of 250 peices and $13 a pop :(

    • With 8W of power consumption on a 15x15mm die, you’d probably need to heatsink that as well. If I start an art gallery, I will definitely use those instead of the cheap stuff.

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