Am I Compensated by the Electricity Company for Electricity That Exits My Home on the Neutral Wire?

• Related Questions

That is a small photocell. They work just like a switch by turning on/off via dusk to dawn. They require moderate visibility, range in maximum wattage, and generally are only for tungsten lighting loads.

Though newer photocell switches are CFL/LED compatible.Also, they usually direct wire to high voltage and need a permanent power source unless the owner is okay using a manual override switch. Typically used for outdoor light automation. Best to use LED bulbs though as dusk to dawn on-time can burn through a incandescents life cycle.

------

LED characteristics to use in heating a material sample?

It really depends on what kind of sample you want to heat up, but the most common way would be to use IR LEDs, like these. I'd use a small lens to focus the beam on the sample (could be tuned precisely enough using visible light from red LED). Make sure you protect your eyes when you power up the IR LED though - its emission is invisible and doesn't make your iris contract or your eyes hurt, so it has potential to burn your retina when visible light would be mostly harmless.

------

Can I use a regular E26 LED bulb as a replacement for a refrigerator light bulb?

In theory, any LED bulb should work. There are bulbs designed specifically for refrigerator/freezer use like this one. The bulb you listed is a 60-watt equivalent, which might actually be too bright - due to glare you really don't want your refrigerator to have too much light as it can actually make it harder to see things, as counter-intuitive as that may seem. The bulb I linked to mentions vibration resistance, among other things. In theory, "appliance bulbs" in general should be a bit more "heavy duty" than regular bulbs

------

Are LED bulbs dimmable?

Hi,Not all LED bulbs are dimmable but some are.Most LED bulbs use Analog dimming mechanism to create the dimming effect of the light bulb. Basically, the bulbs control the forward current being fed into the LED and linearly reduces the current being fed into the bulb making it dimmer than usual. This not only produces low lighting effect but as you can imagine is highly power efficient as well.The Sengled Mooddimmable LED bulbis one such dimmable LED light bulb which uses the analog method of dimming.Hope this answers your question

------

Lower led bulb intensity with resistor

Your big metal film cap is is the main part that sets up led current and hence brightness . If you increase the series resistor value you will waste power to dim the lamp .Halving C will halve the led current Try some lower values to get your desired level of brightness .

Remember that this cap is a mains part and should be safety rated like X2 .If you do not have an assortment of caps on hand you can use your existing caps in series to ascertain your desired value for purchasing

------

come home vs come to homes

It's because these homes are not "his homes"; they are other people's homes.The word homes used in the sentence is not the same as the one in the phrase come home, which is an uncountable noun. This homes is countable, meaning houses.Using the verb come like this (to move towards a place, or to arrive at a place) would need a preposition, such as, come to, or come from. One well-known come to phrase is the name of that Christmas song: Santa Claus Is Coming to Town. :-)

------

Which LED bulb is equivalent to the 10 watt incandescent lamp?

Over the years, advances in technology have brought about innovations in how to light our homes and commercial buildings. In the beginning, all we had was the standard, incandescent light bulb. Now we have compact fluorescent lamps (CFL) and light emitting diodes orLED lightsfor short. LED bulbs require much less wattage than CFL or Incandescent light bulbs, which is why LEDs are more energy-efficient and longer lasting than their competitors.So if you want to replace a 10 watt incandescent lamp with LED, then there is 34 watt LED bulb is sufficient

------

Do LED bulbs have gas in them?

Do LED bulbs have gas in them?Yes, most do. This gas is a mixture primarily of nitrogen, oxygen and traces of argon, carbon dioxide and water vapor. Unlike old incandescent filament light bulbs, the envelopes on most LED bulbs are not a barrier to the external atmosphere, and the air which you can breathe circulates through the envelope. This is acceptable because the LEDs operate with only a modest heat rise above ambient, so there is no problem with high-temperature oxidation as experienced by a couple of thousand degree glowing filament

------

How can I use transistors to work as an SPDT relay using the common pin as input and NC/NO as outputs?

For me, the simplest method would be to convert the 12V input levels into TTL 5V levels. The floating inputs pulled down to zero using a resistor. Then program the behavior using a small microcontroller. The outputs could be either relais or power MOSFETs. Maybe there is such a device already to buy. If you don't have tools to play with electronics then maybe arduino? Using this method, you could even program the brake light to strobe like in Formula1 Hehe :) For the output a RFP30N06LE MOSFET would do.

------

Can this lumen to lux calculator be trusted?

Since a half-meter radius sphere is about 3 m^2 area, the bulb would have to emit about 8300 lumens, which is around eight times what an actual 16W LED puts out. Also, a person's face is nowhere near a square meter area, so the actual flux would be much lower than 2767 lumens even if that number were correct.A typical 16W bulb will have a flux at 0.5m of closer to 350 lux, and without calculating facial effective area, I'd guess the total lumens in a human face at that distance to be about 20.

------

What would happen if I went over the wattage limit specified by my path lights?

Yes and Yes. The maximum wattage is probably to prevent buildup of heat, and using a value over the limit could cause issues: melting the fixture, burning the bulb out, or potentially causing a fire. You will also cause a higher current to be flowing through the wiring, which could be an issue.Note that the only important value is the actual wattage of the bulb, not the "watt-equivalent". E.

g. if you switch to an LED bulb you may be able to get much more light while staying under 5 watts

------

Is it safe to install a dimmable LED bulb in a fixture that is not dimmable and has only on and off settings?

Short answer: Yes.Slightly longer answer:What makes a light fixture dimmable is the switch/interrupter controlling it.If it is on a regular on/off switch it won't regulate the voltage and won't dim. If it is on a dimmer, it can regulate voltage which is considered dimming. An exception: Some low-voltage fixtures using low quality transformers (mostly electronic) have a tough time with dimmers, so some manufacturers label fixtures with these transformers as "Non-Dimmable".

------

Does turning a light off save electricity in a room heated by an electric space heater?

Your basic intuition that anything that uses power will heat the room and reduce the consumption of the space heater is a good one. To first order it is correct. One can quibble that the heat is released in a different place, so may not heat the thermostat as effectively, causing a (slightly) higher room temperature and more total consumption, but that is not in the spirit of your question and probably small. As long as you absorb the light it becomes heat. The sound from your stereo likewise.

------

Recessed Can Light Not Working

It sounds like the the center contact has loosened up in the fixture, with the power off pry the contact up a little and that may solve the problem. There are usually temp sensors in can lights but since changing the bulb made it work for a while I would check the center contact on the fixture. LED's usually will not produce enough heat to trip the thermal sensor. It could be a loose connection in the wiring, but again, since changing the bulb made it work, check the center contact

------

Which filament used in LED bulbs?

The LED filament is then encapsulated in a resin made up of a silicone and phosphor mixture that performs the usual transformation of the LED chips' blue light into white light.This innovative design allows the use both of both blue LEDs as well as red LEDs to modulate the color temperature.The particular semiconductors used for LED manufacture are gallium arsenide (GaAs),gallium phosphide (GaP), or gallium arsenide phosphide (GaAsP). The different semiconductor materials (called substrates) and different impurities result in different colors of light from the LED.

------

How can I tell whether it is the dimmable led bulb or the led dimmer switch that is not working properly?

Without the technical resources to really test the bulb and the dimmer, it's probably easiest to try a new bulb with the dimmer. If you still have audible noise the dimmer is probably faulty.Also, purchase bulbs and dimmers from reliable sources, as there can be significant differences among suppliers and products. Very often with the lower quality (usually the least expensive) products you are taking chances with reliability and safety.

------

Do modern energy saving light bulbs class as fluorescent lighting?

It may also have to do with how the bulbs behave as they age. The reason tube fluorescents fail is because the gas becomes rarefied over time as it bombards the electrodes, the electrodes throw off metal, and that traps gas particles between the metal particles and the glass; that is why the tubes turn black near the ends. As the gas rarefies, there is more sporadic arcing. I don't know if that is a problem with CFLs as well, but we will all find out in a few years

------

What's the purpose of adding a parallel impedance to a relay circuit?

It isn't purely resistive - it's mainly reactive due to the 100nF capacitor. At (say) 50Hz, 100nF will have an impedance (reactance) of nearly 32kohms.The resistor is there to absorb any spikes that may otherwise cause damage to the relay contact. It's called a snubber circuit and is often seen in parallel with contacts too.A lightbulb will be purely resistive but there could be a reason in the designer's mind that maybe a motor could be connected and this could cause inductive kick-back voltages of thousands of volts

------

What are the world's top 20 design companies?

I assume you are talking about graphic design, brand management and product design companies. Here is the list (not the world's top 20 but extremely reputed and list is personal list)PentagramAKQALandor AssociatesThe ChaseGo MediaFrogSiloObject 9BrandEngineSiegel GalennThere are some companies which are not design firm but have created truly amazing designs for their products and have started design revolution:nMicrosoft - flat and minimalist designApple - iPod and iTunes servicePhilips - LED bulbsNest - smart home solutions (acquired by Google)Nike - amazing quality apparels

------

Multiple weak light bulbs vs one strong light bulb

You basically have the right idea.LEDs don't throw much heat (they do throw some, but not all that much) so overheating the room with the lights is probably not much of a concern.I'd encourage you to look at LED fixtures rather than LED bulbs to go into sockets, especially since you are putting on new fixtures anyway. A series of compromises are made to create an LED bulb that goes into a socket like an incandescent bulb. An entire fixture deigned as an LED fixture can avoid some of those compromises