Power Smd
Todays deals on Power Smd?
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10pcs 100W Royal Blue SMD High Power LED 100 Watt Lamp HK $580.00 |
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10pcs 100W Cool White 20000k SMD High Power LED 100 Watt Lamp A++ $533.60 |
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10 5M 5050 SMD RGB LED Strip + Controller +Power Supply $519.00 |
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10 5M 5050 SMD RGB LED Strip + Controller +Power Supply $519.00 |
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10 5M 5050 SMD RGB LED Strip + Controller +Power Supply $519.00 |
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1000PC PLCC-6 5050 3-CHIPS POWER SMD 6000mcd ORANGE LED $499.99 |
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10,5M 5050 SMD RGB LED Strip + Controller +Power Supply $499.00 |
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10pcs 100W White High Power SMD 8000 LM LED Lamp HK $450.80 |
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10x High Power 100W Warm White SMD 8000LM Save Led Lamp $450.80 |
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1000PC PLCC-6 5050 3-CHIPS POWER SMD 10000mcd WHITE LED $449.99 |
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1000 PCS PLCC-6 3-CHIPS POWER SMD SMT 5000 mcd BLUE LED $449.99 |
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1000 PCS PLCC-6 5050 3-CHIPS POWER SMD 6000mcd RED LED! $449.99 |
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1000 PC PLCC-6 5050 3-CHIPS POWER SMD 6500mcd GREEN LED $449.99 |
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5, 5M 5050 SMD RGB LED Strip + Controller + POWER CABLE $429.99 |
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5, 5M 5050 SMD RGB LED Strip + Controller + POWER CABLE $429.99 |
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5 5M 5050 SMD RGB LED Strip + Controller + Power Supply $429.90 |
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5 5M 5050 SMD RGB LED Strip + Controller + Power Supply $429.90 |
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1000PC PLCC-2 3528 POWER TOP SMD 2000mcd WARM WHITE LED $420.99 |
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4,000 PCS BOURNS SMD POWER INDUCTOR-47uH-10%-1.25A-NEW $400.00 |
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NEC NE900275 MICROWAVE POWER FET SMD MOUNT HARD T FIND $399.00 |
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1000 PC PLCC-2 POWER TOP SMD SMT 2000mcd WARM WHITE LED $378.89 |
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SMD Rework S 853D HOTAIR Soldering Station Power Supply 0-15V 0-3A RF 3 in 1 $247.83 |
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Lots 10 Sets Waterproof RGB LED Strip SMD5050 150LEDs 5M+44key IR Remote+Power $330.00 |
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150 PCS TLP250 SMD-8 Photocoupler POWER MOS FET GATE DRIVE /Free Registered Mail $329.99 |
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1000PC PLCC-2 3528 POWER TOP SMD 2500mcd WHITE LED!NEW! $303.99 |
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10pcs 50W Blue High Power 800LM SMD LED Light Lamp Bulb $294.40 |
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5,5M 5050 SMD RGB LED Strip + Controller + Power Supply $289.00 |
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500 PC PLCC-6 5050 3-CHIPS POWER SMD 6000mcd ORANGE LED $279.99 |
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10pcs 50W Warm White 3000-3500k High Power SMD LED Light Lamp DHL $275.50 |
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1000PC PLCC-2 POWER TOP SMD SMT 2500 mcd WHITE LED!NEW! $273.59 |
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10x 50W White High Power 4000LM SMD LED Light Lamp Bulb $271.40 |
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500 PC PLCC-6 5050 3-CHIPS POWER SMD 10000mcd WHITE LED $249.99 |
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500 PCS PLCC-6 3-CHIPS POWER SMD SMT 5000 mcd BLUE LED! $249.99 |
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500 PCS PLCC-6 5050 3-CHIPS POWER SMD 6000mcd RED LED! $249.99 |
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500 PCS PLCC-6 5050 3-CHIPS POWER SMD 6500mcd GREEN LED $249.99 |
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Lot 1500 Wurth INDUCTORs POWER 10UH 1.45A SMD 74477310 $0.14/pc $199.00 |
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1000 PCS PLCC-2 3528 POWER TOP SMD 800 mcd BLUE LED!NEW $227.99 |
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300 PCS 27UH 27 UH 270 SMD power inductors 12*12MM $227.99 |
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1000 PCS PLCC-2 POWER TOP SMD SMT 600 mcd BLUE LED!NEW! $223.19 |
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500 PC PLCC-2 3528 POWER TOP SMD 2000mcd WARM WHITE LED $220.99 |
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1000PC PLCC-2 3528 POWER TOP SMD 1800 mcd GREEN LED!NEW $216.99 |
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500 PCS DS1207-330M 33uH Shielded SMD Power Inductors /FREE Registered Mail $205.99 |
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200 PCS IRL3713S IRL3713 L3713S SMD HEXFET Power MOSFET /Free Registered Mail $199.99 |
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500 PCS PLCC-2 POWER TOP SMD SMT 2000mcd WARM WHITE LED $198.89 |
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1000PC PLCC-2 POWER TOP SMD SMT 1800 mcd GREEN LED!NEW! $195.29 |
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300PC 33UH/2A 33UH 330 SMD power inductors 10*5MM DR105 $192.99 |
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1000PC PLCC-2 3528 POWER TOP SMD 1300mcd ORANGE LED!NEW $192.99 |
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300PCS 27UH 27 UH 270 SMD power inductors 6.8*6.8*2.8MM $192.99 |
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200 PCs PC923L PC923 SMD8 High Power OPIC Photocoupler IC /FREE Registered Mail $175.99 |
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1000PC PLCC-2 POWER TOP SMD SMT 1300 mcd ORANGE LED!NEW $173.69 |
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1000 PCS PLCC-2 3528 POWER TOP SMD 1300 mcd RED LED!NEW $169.99 |
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50 AD820AR AD820 Low Power FET Input Op-Amp IC SMD m $164.00 |
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300 PCS 150UH 150 UH 151 SMD power inductors 12*12MM $163.49 |
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50pcs,AD820AR AD820 Low Power FET Input Op-Amp IC SMD $163.00 |
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500 PCS PLCC-2 3528 POWER TOP SMD 2500mcd WHITE LED!NEW $160.99 |
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500 PCS 150UH 0.4A 151 SMD power inductors 5.8*4.5 DR54 $160.99 |
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500PC 33UH/1A 33UH 330 SMD power inductors 5.8*4.5 DR54 $160.49 |
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1000 PCS PLCC-2 POWER TOP SMD SMT 1300 mcd RED LED!NEW! $160.19 |
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High Power SMD5050-150LED 850nm Infrared LED Strip $146.00 |
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12x SMD LED 12 Volt -24 Volt Light Bar Solar Wind Power $157.50 |
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20 pcs GU10 High Power Bulb 20-SMD 5050 LED White 85~265V Lens Glass Gorgeous $151.46 |
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20 GU10 High Power Bulb 4W 20-SMD 5050 LED White AC85-265V Lens Glass Gorgeous $151.46 |
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20 GU10 High Power Bulb 4W 20-SMD 5050 LED Warm White AC85-265V Lens Glass $151.46 |
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20 x GU10 High Power Bulb 20-SMD 5050 LED Warm White 85~265V Lens Glass Gorgeous $151.46 |
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20 x GU10 High Power Bulb 20-SMD 5050 LED Warm White 85~265V Lens Glass Gorgeous $151.46 |
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20 pcs MR16 High Power Bulb 20-SMD 5050 LED White 12V Lens Glass Gorgeous $149.17 |
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300 LED 5050 SMD RGB Strip Waterproof & IR Remote & 12V 72W Power Supply $148.99 |
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12x SMD LED 12 Volt – 24 Volt Light Bar Solar Wind Power System AC DC 12V 24V $148.75 |
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100pc 3W Violet Purple Blue LED Hight Power SMD Chip 400-405nm $145.95 |
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100pc 3W Violet Purple Blue LED Hight Power SMD Chip 400-405nm $145.95 |
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500 PC PLCC-2 POWER TOP SMD SMT 2500 mcd WHITE LED!NEW! $144.89 |
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Hot sale 20M Waterproof RGB SMD Flexible LED Strip+IR controller+power supply $128.25 |
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20M Waterproof RGB SMD Flexible LED Strip 150Leds+24 key controller+power $142.50 |
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20M 5050 RGB SMD LED Lights Strips 30Leds/M + IR controller+power D $142.50 |
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300 PC PLCC-2 3528 POWER TOP SMD 2000mcd WARM WHITE LED $135.99 |
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200PC 22UH/2A 22UH 220 SMD power inductors 10*5MM DR105 $128.99 |
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100 PCS 2SK3919 K3919 SMD SWITCHING N-CHANNEL POWER MOSFET /FREE Registered Mail $125.99 |
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200 PC PLCC-6 5050 3-CHIPS POWER SMD 6000mcd ORANGE LED $124.99 |
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12V 4A 48W US Power Supply Adapter for 3528 5050 SMD LCD LED Lamp Light Strip $115.00 |
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300 PCS PLCC-2 POWER TOP SMD SMT 2000mcd WARM WHITE LED $122.39 |
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20M RGB 5050 SMD LED Strip 30leds/m+ I24key Controller+power N $121.60 |
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500 PC PLCC-2 3528 POWER TOP SMD 1800 mcd GREEN LED!NEW $120.99 |
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500 PCS PLCC-2 3528 POWER TOP SMD 800 mcd BLUE LED!NEW $119.99 |
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50, TPIC6B595N POWER LOGIC 8-BIT SHIFT REGISTER SMD IC $118.00 |
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500 PCS PLCC-2 POWER TOP SMD SMT 600 mcd BLUE LED!NEW! $116.99 |
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15 pcs GU10 High Power Bulb 20-SMD 5050 LED White 85~265V Lens Glass Gorgeous $113.93 |
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15 GU10 High Power Bulb 4W 20-SMD 5050 LED Warm White AC85-265V Lens Glass $113.93 |
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15 GU10 High Power Bulb 4W 20-SMD 5050 LED White AC85-265V Lens Glass Gorgeous $113.93 |
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15 x GU10 High Power Bulb 20-SMD 5050 LED Warm White 85~265V Lens Glass Gorgeous $113.93 |
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15 x GU10 High Power Bulb 20-SMD 5050 LED Warm White 85~265V Lens Glass Gorgeous $113.93 |
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15 pcs MR16 High Power Bulb 20-SMD 5050 LED White 12V Lens Glass Gorgeous $112.21 |
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150 PCS 330UH 330 UH 331 SMD power inductors 12*12MM /FREE registered mail $111.99 |
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20W 2G11 LED LED Tube Light 120pcs SMD 5050 White High Power SMD Led Light 530mm $92.33 |
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200 PCS 100UH/1A 100UH 101 SMD power inductors 5*7MM $110.99 |
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5M 5050 RGB LED Dream Color Strip Lights 1903 IC SMD+Controller+Power Supply $109.99 |
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200 PC PLCC-6 5050 3-CHIPS POWER SMD 10000mcd WHITE LED $109.99 |
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200 PCS PLCC-6 3-CHIPS POWER SMD SMT 5000 mcd BLUE LED! $109.99 |
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200 PCS PLCC-6 5050 3-CHIPS POWER SMD 6000mcd RED LED! $109.99 |
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200 PCS PLCC-6 5050 3-CHIPS POWER SMD 6500mcd GREEN LED $109.99 |
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500 PC PLCC-2 POWER TOP SMD SMT 1800 mcd GREEN LED!NEW! $108.89 |
Power Smd Questions
LED Bulbs Lighting Up our Lives
Although LED lights (mostly in the form of individual diodes) have been part of our daily life for a long time, their use for lighting purposes started only decades later. This was due to their low light output and to other conditions provided only by later technical inventions.
So what are the conditions that make it possible to have LED light bulbs, which operate at mains and emit enough light to replace any of our current light bulbs?
Light emitting diodes operate at low voltage DC, therefore LED light bulbs in household use need to include internal circuits to operate from AC. Another significant condition is obviously a decent light output of the LEDs. Although, the light emitted by a single LED is increasing very fast due to the large amount of research done in the field, most LED light bulbs contain multiple diodes, to increase light emission. LED light bulbs used as a main source of lighting in households started with the introduction of SMD technology to LED lighting solutions, and was followed by high power LEDs. These are very bright LEDs, but they are difficult to place into the small space provided by the traditional light bulb.
Breakthrough products in household use were Osram’s replacement for a 40W conventional light in 2009, and Philips’ replacement of a 50W bulb in May 2010. The light bulbs created with this high light output are full replacements of previous light bulbs of filament types, with similar beam angles. At the same time, hundreds of Chinese manufacturers work on developing new LED products at a price much more available to the masses. These solutions might lack brandings that are a guarantee for quality, but might produce quality products with warranty also provided.
Another issue was heat generated by the LEDs. LEDs are heat sensitive devices, therefore their thermal management is crucial. When placed close to each other – especially with high power LEDs, which generate more heat – LEDs can easily overheat each other, which eventually leads to the failing of the device. The easiest way of avoiding the overheating of LEDs was that they were uncovered, although this meant that they were also unprotected, and this could also shorten their lifespan due to the dust or oil depositing on the LED’s surface. The best solution was the introduction of heat sinks with cooling fins into the design of the bulb itself. This provides a proper air circulation and eventually releases much of the heat generated by the LEDs.
LEDs come in standard fittings for the sake of easy replacement, however not all LEDs run at the mains, 12V LED lights are still available for running them on batteries or transformers. Transformers need to be LED compatible, as the electronic transformers most frequently used with halogen lights ruin LEDs. There is no such problem with LED bulbs which are suitable for 220V or mains in other words. So those, who wish to reduce their cost of lighting quickly, this is the solution they were looking for.
About the Author
Anita Samuelis works at LEDcentre.uk.com, a company that offers a wide range of low and main voltage, eco-friendly, energy efficient and cool running LED lights, like LED GU10, LED MR11, LED MR16, G4 LEDs and B22/E27 light bulbs and flexible water proof LED strip lights ideal for homes, offices, shops, boats or caravans. For more information visit their site at http://www.ledcentre.uk.com
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