Tag Archives: life

LED Flashlights

Why you should choose LED technology for your next flashlight. A look at flashlights and their evolution into LED technology. The flashlight as you know it has evolved and you should be taking advantage of new improvements that will deliver better performance, longer life, and more reliability. Find out what you need to know to make an informed shopping choice and check out some reviews I have done on some quality flashlights.The invention of the handheld flashlight over one hundred years ago and its subsequent improvements ushered a new era of convenience and safety to anyone that needed to light their way. Over the last decade the flashlight has been transformed by a technologic revolution. The use of LED technology in place of the standard incandescent bulb has resulted in a handheld lighting device that is brighter, longer lasting, and more versatile. A comparison of standard flashlight technology and LED flashlight technology reveals many factors that make the LED the new champion of flashlight technology.

Standard flashlight technology typically uses a tungsten filament incandescent bulb which creates light by heating a suspended thin filament until it glows. This creates a great deal of heat while producing a yellow light. The inefficiency of this process requires heavy battery use and the suspended filament is very fragile and prone to breaking. Additionally, the light beam put out has varying levels of illumination from the center of the beam to its edges. Another disadvantage of the standard flashlight, is that the light output decreases as the batteries are drained reducing effectiveness over the life cycle of the cells.

The Light Emitting Diode (LED) on the other hand, uses a charged semi-conductor material wrapped in a clear solid resin to create light. The light is created when an electrical current changes the state of the material by an exchange of electrons. This process requires less energy and its greater efficiency results in a light that is much brighter and more evenly distributed than a standard flashlight allowing the beam to be seen much greater distances. In addition, the light produced is a white light that more accurately mimics daylight allowing for greater detail in the light zone. The solid resin covering of the LED also serves to protect it and this shockproof design vastly increases its durability over incandescent bulbs with their fragile suspended filament.

Although it is hard to make a fair comparison between lights of different type and configuration, a general result of the efficiency of LEDs gives them an output of around 25-60 lumen per watt while an incandescent bulb will produce between 14-17 lumen per watt. That means that for the same battery input, LEDs will convert on a more efficient scale. The durable and efficient nature of the LED unit results in battery life that is ten times greater on average over standard flashlights. Some LED flashlights also utilize electronic controls that provide multiple levels of light depending on need which increases efficiency and further extends battery life. Also, many LED Flashlights have controls which maintain full light output up until the very end of battery life. Another advantage of this greater efficiency is that effective LED flashlights can be made much smaller than standard flashlights and still produce practical effects.

LED Flashlights

Why you should choose LED technology for your next flashlight. A look at flashlights and their evolution into LED technology. The flashlight as you know it has evolved and you should be taking advantage of new improvements that will deliver better performance, longer life, and more reliability. Find out what you need to know to make an informed shopping choice and check out some reviews I have done on some quality flashlights.The invention of the handheld flashlight over one hundred years ago and its subsequent improvements ushered a new era of convenience and safety to anyone that needed to light their way. Over the last decade the flashlight has been transformed by a technologic revolution. The use of LED technology in place of the standard incandescent bulb has resulted in a handheld lighting device that is brighter, longer lasting, and more versatile. A comparison of standard flashlight technology and LED flashlight technology reveals many factors that make the LED the new champion of flashlight technology.

Standard flashlight technology typically uses a tungsten filament incandescent bulb which creates light by heating a suspended thin filament until it glows. This creates a great deal of heat while producing a yellow light. The inefficiency of this process requires heavy battery use and the suspended filament is very fragile and prone to breaking. Additionally, the light beam put out has varying levels of illumination from the center of the beam to its edges. Another disadvantage of the standard flashlight, is that the light output decreases as the batteries are drained reducing effectiveness over the life cycle of the cells.

The Light Emitting Diode (LED) on the other hand, uses a charged semi-conductor material wrapped in a clear solid resin to create light. The light is created when an electrical current changes the state of the material by an exchange of electrons. This process requires less energy and its greater efficiency results in a light that is much brighter and more evenly distributed than a standard flashlight allowing the beam to be seen much greater distances. In addition, the light produced is a white light that more accurately mimics daylight allowing for greater detail in the light zone. The solid resin covering of the LED also serves to protect it and this shockproof design vastly increases its durability over incandescent bulbs with their fragile suspended filament.

Although it is hard to make a fair comparison between lights of different type and configuration, a general result of the efficiency of LEDs gives them an output of around 25-60 lumen per watt while an incandescent bulb will produce between 14-17 lumen per watt. That means that for the same battery input, LEDs will convert on a more efficient scale. The durable and efficient nature of the LED unit results in battery life that is ten times greater on average over standard flashlights. Some LED flashlights also utilize electronic controls that provide multiple levels of light depending on need which increases efficiency and further extends battery life. Also, many LED Flashlights have controls which maintain full light output up until the very end of battery life. Another advantage of this greater efficiency is that effective LED flashlights can be made much smaller than standard flashlights and still produce practical effects.

Battery Comparisons for Blackberry, Android, Apple and Windows Smartphones

You make a plan to meet up with your friends to show off the latest and greatest smartphone that you’ve just spent a small fortune on. Taking it out for all to view, you hit the power button. Nothing. In a mere few hours since buying the mobile device, the operating system used on the smartphone has drained it dry. To avoid this unfortunate situation, compare the iPhone battery to the Windows, Android and Blackberry batteries.

iPhone Battery Comparisons Apple has made it one of their goals to produce devices with extended battery life times. The iPhone battery life has some of the longest talk times currently on the market. The Apple iPhone 4 has talk times between seven and fourteen hours depending on whether the 3G is turned on. This was an improvement over the iPhone 3 battery with average talk times between five and eight hours. However, the iPhone 4S has an average of six hours of talk time. It is potentially caused by the iOS 5 included on the device. Apple is expected to offer an update to correct this problem.

And the Rest… Windows 7 phones use a single core processor which can reduce the drain on the battery life. The Samsung Focus S uses the Windows 7 operating system and users have been able to get as much as twelve hours of heavy usage out of the device before the battery has drained. The Blackberry battery life for the Bold 9780 is six hours of talk time and four hours of talk time on the Bold 9000. The Blackberry Torch battery has almost seven hours of talk time available. Although HTC devices have received some backlash, many of the Android devices from Samsung, Motorola and LG have talk time averages of eight hours or more.

Considerations It is important to remember that battery power differs from device to device. For instance, numerous consumer complaints arose in regards to the HTC EVO battery. Reports came in that the Android device would not last throughout the entire day without the need to be recharged. Although this Android phone has poor battery power, other phones with Android are well-renowned for lasting hours upon hours. For instance, the Samsung Epic Touch has an Android-based OS and lasts for an impressive seven hours and twenty-two minutes of talk time.

Battery Life Tips Want to make your iPhone, Samsung or Nokia battery last longer? Check out whether or not you are on your phone carrier’s 3G or 4G networks. Disabling this feature has the ability to more than double talk times on most smartphones. Also, Android phones are also set for the brightness to be displayed at the maximum levels and lagging times for sleep modes. Change these settings to increase standby and talk times for your Motorola Droid X Battery and LG Optimus and Samsung Galaxy batteries that rely on Android before use operating systems.