2016年10月23日星期日

Factors Affecting LED Lightings

LED lights are the latest genre of lightings which are widely known for their energy efficiency and smart solution for illumination. With recent research and developments in the area of LED illumination, LED lights have now become part of the green revolution. With this, there have been a rise in LED related accessories like LED light bar brackets, LED flashing light sticks, LED coolers light and many more. From long-life to eco-friendly, there are a number of advantages of LED lightings. However, before opting for LED lights, one should be aware of various factors which affect the performance and durability of these lights. Let us know about these: 

LED power supply

Usually, the lifespan of LED bulbs vary up to 50,000 hours, means 10 years of usability. To maximize their luminous efficiency, they need a good power supply which is referred to as driver. For better performance, LED lights should be run in a power supply that has the facility of controlling voltage. Integrated lighting also affects LED power supply and its light effects. 

LED Heatsinks

Heatsinks remove the heat produced by the LED and enhance the efficiency of LED lights. There are several factors that affect the performance of this important device. 
·       Size – A higher surface area facilitates fast removal of heat. The surface area of a heat sink can be maximized by increasing either the size of overall heat sink or number of fins in the heat sink. 
·       Surface area – A heat sink with painted surface dissipates more amount of heat. 
·       Material – Material is a major factor that greatly affects the performance of the heat sink. There are several materials like copper, stainless steel, and aluminum which can be used to make heat sinks. However, thermoplastic materials are the latest development in the area of heat sink materials which are quite popular for not only being a good conductor of heat but also for their low production cost. 

Capacitor of LED drivers

The type of the capacitor used to store energy in LED bulbs affects the performance of LED lights. Usually, plastic capacitors are used in bulbs. When used regularly, capacitors run for around a year. However, heat and several other factors can affect the lifespan of capacitors. Now-a-day ceramic capacitors are being used for their higher tolerance and therefore getting popularity for their long-lasting property. 

Temperature

The luminous power of LED lights is greatly affected by temperature. The higher the temperature, the shorter is the life. Cooling case plays a major role here. Its temperature should always be maintained below 85°C so that it can function well. A dry, stable environment and optimum temperature increase the lifespan of LED bulbs. 
Conclusion – Now you know about all the factors which affect the performance and lifespan of LED lights. While opting for LED, keep these facts in mind and illuminate your house. 

Reasons For Using Pin Fin Heat Sink For LED Lighting

In the last few years, the electronic system has become more advanced in both designs as well as performance. While talking about semiconductor devices in this series, cooling of devices has become quite important and popular. It is where heat sinks act as a heat exchanger and helps to cool a device by dissipating heat to the surrounding medium. In the case of LED lights, older style heat sinks were found to be insufficient for cooling newer devices. And from here a new genre of heat sink arose i.e. pin fin heat sinks. 

What is pin fin heat sink?

Pin fin heat sink belongs to the new type of heat sink that increases the surface area of the device, thereby maximizing the contact area of the device to surroundings. Used in several devices, this technique works very well in LEDs. Among several types of heat sinks, pin fin heat sinks have gained much popularity. It is similar to a standard heat sink except it comprises of pins that are protracted from the base. These pins come in various shapes – square, cylindrical, elliptical, etc. 

Factors Effecting Performance of Heat Sinks

√  Size – by increasing the size of the heatsink or number of fins, the surface area of the heatsink can be maximized. As the transfer from the device to the surrounding takes place using heat sink, a larger area means readily transmission of heat. 
√    Finishing surface area – a high-bay LED heat sinks with painted surface is quite handy in fast dissipation of heat. 
√  Material – the performance of the heat sink is greatly decided by its material. Copper and aluminum are two preferred material of heat sinks as they have high thermal conductivity. In this category, high-bay LED heat sinks are quite popular as they are manufactured with aluminum and give the best lighting. 

Features and advantages

√   Low-pressure drop is the quality of heat dissolving in pin fin module which results in high efficiency of the device 
√   Pin fin heat sinks manufactured from aluminum minimize the thermal resistance from the base lights. 
√   Low weight LED lights 
√   Pin fin heat sinks come with sensitive thermal tapes 

Reason to use pin fin heat sinks

Pin fin heat sinks for LED devices are specially designed with an air pass which uses forced convection to dissipate the heat conveniently. When used in LED lighting devices, it produces bright lights. 
Pin fin heat sinks are known for their cooling capacity. So when used in lighting devices, it gives out adequate light devoid of any heating effect.
Conclusion – Now you must have understood the role of the heat sink in LED lighting devices. Next time, when you purchase LED lights, keep the quality of heat sinks in mind. Choose the best product and illuminate your house.