Recent content by RoGuE_StreaK

fenix-store
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    Do dimmable lights with warmth transition exist?

    I did end up finding the three-mode SceneSwitch bulbs at one of the big supermarket chains, and on a bit of a sale too! Aus$13.50, $3.50 off normal price. They don't come up if you search the supermarket website though. Put it in the dining room as a test, and so far looks good. Has memory...
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    Do dimmable lights with warmth transition exist?

    Thanks StarHalo, but from what I can see you are looking at several hundred dollars to install a HUE system? Whereas the simple toggling SceneSwitch appears to be sub $20 per bulb, if I can ever track one down locally...
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    Do dimmable lights with warmth transition exist?

    Seems the "notification by email" thread option did't work! :ohgeez: Was just popping back in to say I've now stumbled across the Philips SceneSwitch, which appears to be pretty-much exactly what I was saying in the latter part; using toggling of the light switch to change both brightness and...
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    Do dimmable lights with warmth transition exist?

    I haven't been around for a while so may have missed something, and my brief searches didn't turn anything up; do LED "bulbs" exist that transistion from neutral to warm as they are dimmed down? I found a few research proposals but no existing products. I was just contemplating what kind of...
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    Noob to LED strips

    Having WS2812B chips inside, it's gonna be a bit of a pain as you need a signal to get anything to work Try this one?
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    Ordering LEDs direct from China (AliBaba/AliExpress)

    I'm kinda more like him :D Most expensive torch I have is probably less than $15, but I try to find out exactly which emitter and driver are in there, and what the heatsinking's like. Personally I'll probably never ever spend more than $50 on a torch; guess I don't have enough bears or zombies...
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    Ordering LEDs direct from China (AliBaba/AliExpress)

    Nah, out be a factor about, say, 20... They use either an XR-E or XP-E, if a Q5 bin (which may be doubtful, seems to have just been a buzzword they all pick up on), even if pushed to max rated current of 700mA then lumens at the emitter would be a little over 200. Expect quite a bit of loss...
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    LED STRINGS- Making white look white. Mild Overvoltage and "burning in"

    As SemiMan says, you need to have more control over the mix; your desired end colour may not actually be acheivable, but you should be able to get closer than using the "pre-mix" buttons. Often (usually?) the "white" is just "run all three channels at 100%". You may find for example that using...
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    Brightest 5mm white LED ?

    Any thoughts on the "nicest" 5mm white out there and readily available? Something with decent colour rendering and not blue/purple? I've got several things lying around that could be much nicer with a clean white 5mm replacement rather than the el-cheapo blue/purples that are in them.
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    RC aircraft LED landing light

    So you don't have any other lighting on the plane yet? If not, then forget about the landing light until you have a good orientation setup, typically utilising cheap 12V LED strips. Make it so you can tell left from right and top from bottom, otherwise it will be a short flight and you won't...
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    Where did the LED Mini Skirt thread disappear to?

    Re: Where did the LED M*** S**** thread disappear to? Well done CPF admins, now the source of some of the most technically interesting LED links is going. Slow clap.
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    LED help

    Don't ask me, I just lurk here
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    Any questions for Nichia ?

    Yeah, can you grab me some samples? :whistle:
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    LED help

    Not sure if it will work in this situation or not, but you could try the trick of holding a screwdriver to your ear to pinpoint or narrow down the origin of the hum. Pro tip: the big rounded end of the screwdriver goes to your ear, the pointy end onto the component being examined. Not the other...
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    How to make a simple 18650 CREE light?

    Extreme simplest "driver" is just a resistor. Far from efficient, and far from ideal, but it'll work. You need to know the Vf (forward voltage) of the LED, how much current you want, and your source voltage; note, a fully-charged 18650 is 4.2V, NOT 3.7V which is the "nominal" voltage. Then...
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