I would like to buy a 32 inch LED TV. What brand do you recommend?
I want to drive 20ish LEDs, should I run them as series or parallel and why ? [more inside]
I'm looking for a battery powered, light-up soccer ball for playing at night. [more inside]
how to output from a PC to a screen that is 24 pixels by 20 pixels? [more inside]
Aiming to buy an LED projector, a market I know little about. [more inside]
What is going on in LED lightbulbs? I mean the devices, not the industry. [more inside]
How to calculate the cost of LED lighting. Or... renting my apartment, LED lights, energy conservation and fiscal sense. Please help me! [more inside]
I'm looking for a battery powered LED light to replace the corded light in my illuminated globe. I'm transferring my globe from a single axis mount to a Gyro-matic (dual axis) mount. It's no longer convenient to have cord in this configuration, so I'd like to illuminate the globe with an LED light that can be switched on from the bottom base plate. I'd probably have to drill out a hole in the base plate to expose the switch. Any ideas are on lights or installation are much appreciated. Here's a link to the bulb replacement instructions.
Is there a better option than incandescent bulbs for my kitchen? More inside... [more inside]
Please help me find LED lighting options for the bathroom. [more inside]
It's been cold recently (-15C) and I burned out two bulbs in my dutch bike's headlamp in a short time. Since the bulbs are hard to find, I thought this was a good time to replace the bulb with a 1-Watt LED light. What I built works, but I don't quite know why. [more inside]
I've been looking around at lighting options for my bedroom, and my geeky self decided that custom LED strip lighting would be awesome. Then I read previous AskMe's and want to make sure I can do this without burning down my house! Questions and a search for the easy way inside! [more inside]
Does anyone know where one can get instructions on how to make "LED smiles" (or where to buy them)? [more inside]
I'd like to use a single 5mm UV LED (3.4Vf, 20-25mA) to charge a daub of glow-in-the-dark paint. It only needs to be lit around 1 minute of every 10 (or 6 seconds of every 60), and only when the (room) lights are out. What battery/circuit would be most economical to operate, and require the least-frequent battery changes? [more inside]
I need a computer program that can take the text of my novel and scroll it across the laptop screen like one of those LED ticker scrolling signs in Times Square. [more inside]
Best book light? [more inside]
How can I make a clear plastic cast of a bicycle? [more inside]
LED LCD HDTV? I'm looking to finally replace my 1998-vintage CRT with a Samsung 40" LED LCD @120 Hz (model #UN40C6300SF). It's on sale at Best Buy and the reviews have been very positive with a few complaints of bad panels and visible corner "flashlighting" in a dark room. Anyone have experience with LED TVs? I like their sexy slimness, but are they built to last? Should I wait another year for a comparably-priced 3D version?
Circular multi-segment LED displays? Who makes them? [more inside]
music filter: "Boogie with Stu" ... and who else? [more inside]
How to attract the attention of a be-headphoned person in a cube across an aisle facing away from the entrance without touching them? Ideally this would be inexpensive and not require any hardwiring. [more inside]
How do I wire up a bunch of LEDs in my ceiling? [more inside]
Do you have any LED lightbulb recommendations? [more inside]
I want to create a customized Settlers of Catan board. For the purposes of this question, it could also be a custom Monopoly board. I want the pieces ( cities / hotels ) to light up when they are placed on the board. I know I would put LED's in each piece, but besides that, I am not sure if or how I could power up the LED's. I am not an electrical engineer, but magnets, watch batteries or inductive charging sound good to me. Help me make an awesome electronic board game!
Old sun-damaged skin all over my body--is it tilting at windmills to consider light therapy? [more inside]
Table Hockey in the dark? [more inside]
Help me turn a blindingly bright LED tube into a functional and decorative floor lamp! [more inside]
Why are LED signs so often seen broken, at least in part?
Please help me find replacement light bulbs for my gadget. [more inside]
ScotFilter. Or LedZepFilter. Why did Glasgow need it? [more inside]
What is the best auto racing simulation? I currently have no gaming equipment. [more inside]
Your suggestions for lighting the top of a 50 ft. sculpture being displayed at our state fair? [more inside]
Who did the big band version of Black Dog and where can I find it? [more inside]
Any advice, particularly construction/fabrication related, for this lighting oriented site-specific installation?
A couple of friends and I are organising a site-specific installation for the Smart Light Festival (flash w/ sound) to be held in Sydney from May 26 to June 14 this year. While I would appreciate any advice on bringing an installation like this to fruition, I was hoping specifically to get feedback on our plans to pre-fabricate the components (basically if they seem feasible, and if there are cheaper more efficient ways of going about it, how to use less energy, and especially how we could reuse or recycle the materials). [more inside]
I'm looking to buy a projector off a classifieds site but the only issue is it requires a new bulb upon purchase. Besides the obvious problems that could come of this like having no way to proove that it works. I was wondering how difficult it would be to replace the lamp with some High powered LED's. [more inside]
Help me get started with basic electrical engineering! [more inside]
I'd like to hang a small screw-in type grow light (not a giant florescent tube) above my plants to help them out. Possible? [more inside]
Where in Los Angeles (or within an hour's driving distance) can I get a whooooooooooole bunch of LR41 batteries on last-minute notice? [more inside]
Moderate to large quantities of blinking LED novelties, retail, in Manhattan? [more inside]
Electronics/LED Folks: I bought a few cheap, poorly-assembled LED color-changing orb-things and I'm pretty sure they're the coolest objects I have ever owned. I cracked 'em open, and damned if I know what is going on in there, but it looks simple/cheap as all hell. Help me figure it out, I'll post a build-log/parts list somewhere, and in short-order we can all be ass-deep in home-made, disarmingly sublime mood-lighting. [more inside]
I want to make an unobtrusive, light-based alarm to help me remember to take my pills. What do I need to do? [more inside]
Powerbook G4 (hardware?) woes, followed by death of battery LEDs. [more inside]
Should we buy CFL or LED bulbs? [more inside]
LongshotFilter: Does anyone know if any 15.4" WSXGA+ panels with LED backlights are coming to market soon? [more inside]
How can I use the iPhone 3G's headphone jack to power an LED? [more inside]
Using a AA battery, two pieces of speaker wire and an LED, I am trying to make a simple circuit. I am meeting with complete failure. Help! [more inside]
I have a GE remote temperature sensor that uses an LED screen for a readout (black numerals against a grey background). REcently, the lines making up the numbers began to disappear. I replaced the batteries, but they still kept disappearing to the point that nothing is visible on the screen at all. Is there a solution to the problem or is this the end of the unit? For some reason, I thought these kind of readouts lasted forever.
Where around socal can I meet other aspiring electronic do-it-yourselfers? [backyard imagineering] [more inside]
Best LED flashlights? [more inside]