Tuesday, August 12, 2014

Lamps - Flourescent, Incandescent, LED, HID, or Oil?

Could you imagine not having lamps at home? - no fluorescent lamps, study lamps, ceiling lamps? I guess not. Lamps or bulbs are so much a part of our society that we seldom give them much notice. However, we cannot imagine living without them.
Lamp comes from the Greek word "lampas", meaning torch, lamp, or beacon. Any equipment that gives off light for some duration to be used for lighting is called a lamp.
In the modern world, lamps are defined as the replaceable part of a luminaire. This contraption transforms electrical energy to both visible and non-visible electromagnetic energy.
The first thing man had to develop was fire. After developing fire, he must have thought, "Hey, I have to put this in my den so it will provide light and warmth to it." And so he took a piece of flaming firewood from the bonfire and took it inside his home. Thus the first "lamp" in the form of a torch was created.
Man's next problem was how to get those things to last longer. Over the span of time, he developed numerous ways of prolonging this light. Some of the ancients used beeswax, some used olive oil.
Soon complex means of lighting homes and streets were used. In the late 19th century, oil lamps lined the streets of England to provide lighting throughout the thoroughfares.
Then came the famed perseverance of Thomas Edison. After tiring days of back breaking work, Edison invented the incandescent lamp. And the world was changed forever.
Today the world is a big glowing lamp. Cities are bathed in streams of light from buildings, street lamps, car lights and home lighting. Because of technology, lamps today can last longer, can light brighter, and can be used more conveniently than before.
So Many Lamps, So Little Time - Kinds of Lamps
1. Oil based lamps
These are the old fashioned lamps that burn on oil, wax or other base. They are now commonly used to provide atmosphere to the home or to light areas where there is no electricity.
2. Incandescent Lamp
The incandescent lamps have come a long way. These lamps are used to provide lighting in many countries. These lamps are hot and give off light that is, in brightness, somewhere between candlelight and sunlight. Halogen lamps are a version of incandescent lamps that give a brighter light more akin to sunlight.
3. Flourescent Lamps
Fluorescent lamps give off light that is cooler than its incandescent cousin. They are very energy efficient and are easy to install and do not generate too much heat. They are very popular nowadays. Another good thing about these lamps is that they last longer than incandescent lamps.
4. HID Lamps
High-intensity discharge lighting are specialized lamps that are very powerful. They were first used for streetlights and are very energy efficient. They typically convert energy to light at an astounding 8:10 ratio.
5. LED Lamps
LED lamp technology is very promising because they give off a very bright light for very little electricity and do not heat as much as the other lamp technologies. However, they are still expensive to manufacture for lighting. They are, however, already being used for electronic displays, and accent lighting. Another upside is that they are extremely durable, LED lamps could last 100,000 hours or more! This makes the future of lamps very exciting.

Monday, August 11, 2014

LED Headlights Gaining Popularity in the Auto Industry

Light emitting diodes have been used in a number of different applications as a light source, since they were developed in the early 1960s. For the last few years, they have found an increasing amount of use as the headlamps in many automobiles, but they must be introduced as replacements in the automobile aftermarket. Installation is easy, but there are a few important considerations.
There may be several advantages and disadvantages that come with the use of LED headlights, and one of the most obvious disadvantages is the initial price. LED headlights will usually cost more than traditional halogen headlights. They can cost almost as 3 times as much, and are more heat-sensitive. Some cooling device or mechanism, such as a heat sink may be needed.
There may be some legal issues with the lights, in your region, that is regulated at the state or municipal level, and you should check with your local authorities, before you install LED headlights in your automobile. The light may be required to be of a certain brightness that is specified in lumens.
Light emitting diodes are a high-efficiency light source. The quality and brightness of the light is much better while less energy is consumed, and they also last much longer than traditional halogen lights. Because of the higher efficiency they are being used in an expanding amount of applications in both industry and residences.
• When used in automobiles, the increased brightness results in improved visibility over longer distances, which can improve safety on the roadways, when accidents are avoided.
• The average LED light may last as much as 5000 hours, which is 200 times more than the traditional halogen light. Lower replacement costs, results in considerable savings.
• The quality of the light created with LED is more natural, as the color temperatures at specific ranges, are much closer to those of natural sunlight. LED lights require almost no maintenance and emit very little heat radiation.
These are only a few of the advantages, but as the costs of manufacturing the lights are reduced, as mass adoption introduces greater cost efficiency, the cost disadvantage can very easily be overcome. It may still be a bit too early to tell whether the auto industry is going to switch completely to LED lights, but they are slowly being introduced in the luxury vehicle category. The reasons are much more than aesthetics, as they have proven to be more economical.
Recent surveys show that the top priority as far as technology is concerned for new car buyers is LED headlights.

Thursday, August 7, 2014

What Makes Bluetooth Speakers a Better Choice?

The world has truly made a significant breakthrough with regards to wireless technology. One of the most used form of wireless technology is Bluetooth. It is wireless technology standard for exchanging data over short distances. We have Bluetooth in phones, cars, and many more. Recently, another device was made Bluetooth-capable. Professionals in the field of wireless technology have developed speakers that are Bluetooth capable. What are Bluetooth speakers? What advantages does this have over regular plug-it speakers?
Bluetooth speakers are external speakers in which you could connect with your phone, Personal Computer, and/or laptop computers for you to be able to listen to music. There are a lot of great things about this kind of speaker that makes it a step higher than regular speakers. Bluetooth speakers are power-packed in overall performance, energy-efficient, movable and portable, wireless and easy-to-use.
First of all, these speakers have no issues with regards to sound disturbances. Even if you block it with another device, it would still give you a great sound. It has an impressive sound quality than regular speakers. It is small in size but it is a lot stronger than ordinary speakers - power-packed performance.
Second, it is battery/energy efficient. There is no need for external adapters for most kinds of these speakers run using AA batteries. A fully-charged Bluetooth speaker can go up to 48 hours, non-stop! You don't have to worry if it goes off in the middle of an outdoor trip, just always remember to bring extra batteries with you.
Another reason why these speakers are a lot better than regular speakers is its portability.These speakers are movable. You could take these speakers wherever and listen to music whenever you want. These are wireless. You do not have to worry about tangled wires and mixed-up cables. There is no need to worry about a wire breaking off and damaging your device.
Lastly, these speakers do not need to be installed. It connects automatically. You do not have to go and look for drivers that will make the device work. If you are within the five meter range then you are good to go!
With the said advantages, there is no doubt that these devices are always part of the best-sellers list in various shops. Do not worry about the pricing for these devices are moderately-priced. There are also a lot of online shops which offer Bluetooth speakers with discounts.

Wednesday, August 6, 2014

Infrared, Wireless, Or Bluetooth Headphones?

Infrared headphones, wireless headphones, and Bluetooth headphones. Each of these categories of headphones has a techie-sounding name, but at the bottom line of them all is just plain old wirelessness, which is what you basically thirst for in a cordless audio device.
Of the three, both wireless and Bluetooth headphones share a similar method of broadcasting and receiving the audio signals. Infrared headphones, on the other hand, operate on quite a different level. All three, technically, are wireless headphones, albeit using distinctive means for achieving the same purpose.
Wireless headphones, in a more restricted sense, are more accurately called radio frequency or RF headphones. Just like their Bluetooth counterparts, these headsets use wireless radio frequencies for sending audio signals from a transmitting device (i.e., a base station) to the headsets so that you can hear the sound. However, since many other devices (e.g., cordless telephones, remote-control cars, etc.) also use radio signals for proper operation, RF headphones tend to compete with such devices for pathways. Thus, it is not uncommon for signal interference to be experienced with RF headphones.
RF headphones remain popular these days owing to the wide applicability of radio frequency broadcast technology in many electronic products. Yet, in the light of Bluetooth technology, RF headphones appear simplistic. Bluetooth hasn't completely nudged radio frequency headphones off the grid, though. After all, both types use a similar medium for their signals (i.e., radio frequency). One striking difference between the two is that with Bluetooth headsets, no special transmitter base is required. All that you need are at least two Bluetooth-capable devices, which you need to bond or pair so that the devices can create a network between or among them. Having created a personal area network (PAN), the devices can share various types of data, including audio signal data.
Infrared headphones, on the other hand, make use of light. It uses not any ordinary kind of light, but the infrared kind. It is a form of electromagnetic radiation whose frequency is below that of the red frequency range in the color spectrum (thus, the name infrared). Infrared headphones work in a similar way to your television's remote control, except that the headset receives light signals from a transmitter and converts them to audio signals on your headset's speakers. The biggest downside of infrared headphones is their need to be always within the line of sight of the transmitter device, or else the connection is broken. On the up side, though, you won't need to worry about signal interference with infrared-powered headphones.
Infrared headphones, wireless headphones, and Bluetooth headphones all operate quite differently from one another, but they are quite capable of giving you quality audio in addition to freedom of movement.

Tuesday, August 5, 2014

Choosing the Best Auto Headlight and What Does Halogen, HID, Xenon and LED Bulb Means

Do you know that the world's first electric headlamp was invented by the Electric Vehicle Company based in Connecticut, United States and was powered by an electric car in the year 1898? Since then, there have been significant improvements on the type of headlights as well as its functionality.
If you happen to drive in the night and see a pair of blurry yellow colored headlights approaching from the opposite direction of the road then you have mostly likely encounter an old classic. Such headlights employ a century old tungsten filament technology that is less commonly used by today's auto manufacturers.
 
If you see an incoming bright blue/white headlamp, chances are it comes from a luxury Mercedes or BMW cruising past you at lightning speed. Such vehicles are factory fitted with HID or High Intensity Discharge lamps or better known as Xenon lights. Xenon headlamps are known to burn brighter than conventional headlamps given the same voltage/wattage consumption and therefore its popularity.
 
It is obvious that the bright blue/white light gives the driver better visibility while on the road and headlamp manufacturers have been quick to acknowledge the growing demand for such headlights. Many motorists have converted their headlamps by switching to xenon bulbs that can be self-installed easily. There are many brands and makes available in the market today simply by browsing through the internet.
 
Before you decide to switch, check your existing headlamps first. If your car is fitted with the original headlamps, the first thing you have to figure out is whether it is using separate bulbs for the dip beam and the high beam. There are also cars that use a single bulb for both the dip and high beam. A single bulb that can perform dip and high beam function has two filaments inside the bulb. When you switch on your headlamp, the dip beam filament will always remain lit and continues to remain lit even after the high beam is switched on. Headlamps that utilize a single bulb with two filaments are easily recognized when you take it out because it has a 3-pin connection.

 
On the other hand, a headlamp that uses separate high beam bulb has a single pin connection while its low beam counterpart has a two-pin connection.
 
Next, check the original manufacturer specification because there are other bulb manufacturers that do not conform to the above pin connection specification. However, you will find that almost 90% of auto bulb manufacturer conforms to the above pin specification.
 
Prior to the popularity of HID, many autos have switched from the traditional tungsten bulbs to Halogen. Although the functionality remains the same, Halogen gives off white light using thinner filament. The advantage of thinner filament is that it gives off brighter light. With thinner filament however, it tend to burns out easily and to overcome this problem, manufacturers have been able to increase its lifespan by incorporating halogen gas inside the filament, thus the name halogen bulb.
 
The continuous development in headlights technology has always focused on brighter and longer lasting bulbs that use the least amount of energy. The brightest bulb is not always the most useful because it produces glare that can temporarily blind drivers approaching form opposite direction of the road. Popularity of HID bulbs was due to its brightness and attractive blue/white lights produced. It is said to burn 3 times brighter and 10 times the lifespan of a Halogen bulb. However, be sure to fork out more for HID bulbs if you intend on investing in such headlights.
 
The latest headlamp technology is focusing on LED bulbs or Light Emitting Diodes. The advantage of LED over other existing bulbs is the much superior lifespan and durability. Its small size affords headlamp designers greater flexibility. It is well documented that many of the LED's produced in the 1970s and 1980s are still in operation today. The use of LED for tail lamps, brake lights and interior lighting has been quite common but limited for front headlight due to high cost factor of producing it to match natural daylight color.