White LED Lamp

I was looking at these LED desk lamps over at the store and their white light had more than a hint of blue to it. Or are they really blueish? Why is t...

Ive recently purchased a pack of 3 - 3.6V LED bulbs form e bay:http://cgi.ebay.co.uk/100-5mm-Red-Green-Blue-Yellow-White-LED-Light-Bulb-Lamp_W0QQitemZ...

I want to buy white LED lamps for my headlights (low beams). What website is good to get them at? Also I heard it is not safe to use LEDs because it's...

This LED lamp contains 36 LEDs. It does not seem as bright as it should be. What is wrong? Here are the specs for the LEDs used: 5mm Bright whit...

I have a 5W LED star http://cgi.ebay.com/Brand-New-5W-Ultra-Bright-White-LED-180-Lumen-LEDs-Lamp_W0QQitemZ280344255018QQcategoryZ66954QQcmdZViewItemQ...

Hi i'm trying to buy a bulb for my bedroom. Actually i use a yellow light bulb of 100watts, i think is time to change! I'm looking for the best bul...

I have read that LED lamps reduce the consumption of electricity to a great extent. But are they connected to the circuit along with resistors? In ...

I want to make a 10, 20 or 30 LED lamps stick, and i want to connect it to a regular wall socket (220v, Europa). How can i do it. I know that i must a...

i want learn about led production procedure and buy a led lamps production line.

I bought an interior lighting for my new cabinet but I later found out that its supply is 12VDC. MY transformer for my power supply is 12VAC. Will it ...

I just installed halo head lamps on my G6 and wired the halos into the parking lights. Everything worked perfectly, the next day I hooked up the new L...

Hello, Currently we use 120Vac 120W halogen lamps in our system and now LED lamps are coming onto the market we would like to use these. Would it be ...

How to determine how bright an LED will be prior to purchasing, what do I have to look for? I am talking about the small LEDs in electronics/xbox's et...

I´m going to take pictures inside a cave, so there is no light. Tha´s why I need the brightest , smallest lamp i can carry in my back pack, I figure...

Im talking about the different color ones that go all over the bike.I want to get them on my bike but i don't want to get a ticket, then have to take ...

Would a combination of red/white or yellow/white or yellow/yellow be more visible to approaching traffic to the rear of a stationary vehicle? I'm thin...

each snowflake was about 2ft by 2ft and they wrapped around the front of the home of the gutters. i never seen this type of bright white string light...

hey i have two led lights which are plugd into the cigarette lighter part but i can only put one led light on a time because theres only one cigarette...

Do LED lights ever die? Misfunction??

We are replacing our standard Christmas lights with LED and we have a 7 foot artificial tree. I have heard we should be using around 700 lights (100...

I am planning on wiring around (16) 3mm red led lights up to my xbox using the xbox's 12v source. How many LEDs can I use if they are 3.5v per LED? Ca...

How can a build a display of LED lights? I sell emergency vehicle lights. I would like to be able select one model at a time (similar to car ste...

what size are my lights that are underneath my dash.. they light up the floor...they have little clips on the bulb i have a 2005 dodge stratus coupe....

Everyone says, "use fluorescent compacts, they use less electricity!!" But..I worry about them because they contain vaporized mercury. L...

Many of the light fixtures in my house use the small Candelabra base bulbs. Although they use 20-25w per incandescent bulb, that adds up to 50w and 10...

I want to change the rear tailight bulbs on my 2005 Honda Accord sedan to LED light bulbs. Can i do this? and where can I find these light bulbs?

i'm an applied physics student. i need a thesis topic and i'm very interested in the topic about LED light bulbs

I see LED light bulbs for lamps, flood lights, and spot lights at home. Have you tried them and do you like them or not? They are pretty expensive yet...

I've got CFL's in most fixtures of my house and am pretty pleased. However, for some "high usage" rooms we are considering getting some LED...

i have an LED night light that i can not sleep without. i was just getting ready for bed and the cover covering the light is broken off and wont go ba...

Newbies with circuits, want to make a solar powered night light for my room. (inc. photoresistor)

I'm not that good with electronics yet, so I'm not sure if this will work. Diagram: http://i98.photobucket.com/albums/l276/buccaneersfan1034/LED.pn...

Because it is reflected in the mirror , does that supply more light or does it make no difference.

Does anyone know any brands of small attachable LED lights for a small HD video camera. It's an 840HD vivitar. Its not anything big, But it's just for...

At night, lights seem to have trails leading out or move quickly in another direction with my eye movement. Like LCD, LED, light bulbs, and some other...

I have a 2010 Mitsubishi Lancer EX that i buy last Month and i'm planning to install LED Strip inside the Headlamps and Angel Eyes...will it void my W...

What should I know to choose the suitable led strip light?

I have an Aerobie frisbee disc that I would like to put LED's on so that I can use it at night. So since this is going on a really light frisbee weigh...

I cut the red and black wire from the back of the cigarette lighter and then wired the red to the + wire on the LED strip then the black to the black ...

I have an LED strip that takes 12 v. I do not want to do any splicing unless i really have to, but can i power it up through the fuse box? I was think...

I just bought a new prius and have not been able to get the strip of led's in the headlight and tailight to work. I can't find anything about them in ...

I am looking to purchase an LED light for residential lighting. I want it to be white, and I'm looking for the most light output per dollar.

The RGB LED TV's like Sony Bravia use 3 colours in each LED to supposedly produce better quality colours than the cheaper white LED that also use less...

How much voltage does it take to power a white LED? And what size resistor do I need to convert from 3.0 vDC to that amount? Thanks

Because I can't seem to find any LED christmas lights with the color purple. I've imagined a way I could do it myself but first would like some advice...

hi i need to find out the efficiency of a white LED. I need it in the form of visible output light power/input electrical power in %.

I was looking at these LED desk lamps over at the store and their white light had more than a hint of blue to it. Or are they really blueish? Why is t...

I know that an LED bulb is more efficient than a fluorescent one, at least in theory. However, I have a bike apparatus that, when peddled, lights the ...

I am doing a science fair project using a wind turbine. I will buy it online from kidwind.org. It's a mini one. Can you please tell me how to use it t...

I need to create a circuit of a doll house size LED bulb, battery and on/off switch but have no idea how to do it! I basically want a battery powered ...

When a LED Bulb manufacturer claims of a MTBF(mean time between failure) of 100000 hours. On what basis does he makes such a claim. Please explain in...

I rent an apartment using 24W Philips CFL bulb. For the same lumen, I want to replace it with LED bulb, how many watt should I choose for the LED bulb...

I am making a light using a LED bulb and a USB cable. i have tried a 47k ,100k and a 10k resistor and all resulted in low lighting. Is the Resistor th...

I want to replace halogen lamps in my kitchen and bathrooms with LED equivalents. The no-brand ones you see in most DIY stores these days aren't power...

Any one know where i can get an LED spotlight of around 20watts with a 12 to 15 degree viewing angle?

Probably 2 or 3 watt lamps

bulbs, but how can I attached a UV light to my tank without a lid? Is it possible, bearing in mind the size of my tank? Thanks :)

I'm in the Fire Dept and I need to wire 6 kc lights, 2 strobes, 2 police spotlights, and 6 led strobe systems together in my jeep cherokee. I guess I ...