Monday, 22 December 2014

Types of LED Lights


Types of LED Lights: What to choose?

There are two main types of LED Lights, SMD and COB. Choose the LED lamp that is most appropriate for use. Within the LED lighting there are different types of lamps, such as SMD (surface mounted device) or COB (chip on board).We see the differences between SMD lamps and COB lamps.

Due to its construction, COB basically have a higher output and better dissipate heat than SMD. After reading characteristics of these LED lamps we may ask: if the LEDs do not emit heat, why it is necessary that this be dissipated? When we touch an LED lamp we do not burn fingers, however, LEDs that emit heat itself, but this is projected from the light direction. Consequently, the heat is poured into the back of the LED chip and to make this part from overheating, it is necessary to dissipate well.
Types of LED Lights

As for LED SMD (surface mount device), these are encapsulated in a semi-rigid resin is assembled superficially, and are usually the most suitable for installation in places where lighting step is not going to be on continuously or for when you need a dimmer light, since the LED chip can reach high temperatures. But then see the characteristics of both lamps.

COB LED Features:
·         Provides up to 120 lumen / watt, double light output provided by SMD LEDs.
·         Its opening angle can be up to 160 or the light intensity is increased without concentrating the beam so its manufacturing costs are lower than the SMD LEDS, about 20% less.
·         No need to run an electrical circuit, thereby hardly suffer devices.
·         Gives a multidirectional light and do not cause glare.
·         It withstands fluctuations of electric current.

SMD LED Features:
·         Emit a beam quality, while providing 60-70 lumens / watt, half the COB LED.
·         If an LED is damaged there is a device that makes up for the rest run smoothly.
·         They cannot be on continuously. At the meetings of the LED chip to the base of high temperatures that could damage the device occur.
·         Depending Of semiconductor material that can be manufactured more variety of colors. For the RGB model, the three primary color LEDs, you can develop up to 16 million colors with additive mixture.
·         They have a color rendering index (CRI) of 80% faithfully reproducing the colors.
·         The opening angle can be 360 or because the LEDs can be distributed throughout the body of the bulb.
·         They are very resistant to shocks since they have no filament.
·         Gives beam sensor only, so it is suitable for housing.


In addition to households, are used in aeronautical and automotive applications, traffic signals or to form numbers on digital clocks. The COB LED, however, by the way dissipate heat, are installed in places where one is required constant illumination. But regardless of the type of lamp you choose, it is important to look at the quality of it, because only then can we obtain greater efficiency offered by LED lighting. 

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