SMD LED Characteristics

LEDs are the light bulbs of the future … and you can have them today! They enable the many ignition and shutdown cycles, and produce the light output with no waiting.

Some of these lamps are both durable (from 2 000 to 40 000 hours), tough and resistant to shock and cold. These qualities attributed to conventional LEDs, are they found in the LED SMD, which are more powerful? Answer in our trick.

LED: a variety of SMD bulbs

The LED (short for Light Emitting Diode by Lightinghowto) SMD (Single Mounted Device) or CMS (Surface Mounted Components) is so named because the component is soldered to the printed circuitry of the lamp:

  • The bulbs or SMD spots juxtapose several electronic components to deliver more power than conventional LEDs. They appear as small yellow pellets flat.
  • It is therefore of Led modules, which connect one or more LEDs on a circuit board, with or without a light control device.
  • They may require specific lighting or adjust the existing one. The lamps contain electronic components that traversed by a current, produce light.

These bulbs differ by type of SMD LED used to achieve it. For example, current applications use the LEDs:

  • SMD 0805,
  • SMD 1210
  • SMD 3528,
  • SMD 5050.

Note : these figures indicate the size of the chips. A product equipped with SMD 5050 LED can be 3 to 5 times more powerful than a product with the same number of LEDs SMD 1210 or 3528. The size of the SMD LED 5050 allows to insert three light components, while other have only one member.

These lamps have even higher prices (17 € TTC for a little less than 30 €).

Advantages and disadvantages of LED lamps

Flexibility of use

Benefits include:

  • component surface mounted printed circuit has an impact on reducing costs, but especially on the thickness of the finished product;
  • they have great flexibility of use;
  • Led modules such as LED SMD can incorporate an electronic control for better management of lighting:
    • presence detector,
    • dimmer, etc.;
  • just like conventional LEDs, the scattering angle is quite large (140 to 150 °);
  • like other Led, they:
    • operate with low voltage;
    • are insensitive to shock;
    • can be inserted in many applications;
    • do not contain mercury.

LEDs: more exposed to heat

Downside LED SMD more heat than a conventional LED, which has consequences on the life.

Indeed :

  • isolated LED offers energy efficiency 150 lm / W at 220;
  • SMD LED lamp has an efficiency 40-80 lm / W.

This decrease can be attributed in particular to the heat produced by the diodes placed side by side in the lamp.

Energy label for an informed choice

Another disadvantage is the uneven quality of LED encountered commercially. The energy label, mandatory since September 2013, appears on the packaging of information important to choose a bulb:

  • number of on / off cycles;
  • content of mercury (Hg);
  • manufacturer’s website;
  • luminous flux of the lamp in lumens;
  • color temperature;
  • length and diameter;
  • indication of non-operation with some drives;
  • lifetime ;
  • time before obtaining 60% of total luminous flux;
  • energy class and consumption;
  • beam angle for spots.

Precautions with SMD LEDs

The LED lights which have high emissivity in the blue cause a photobiological risk highlighted by ANSES.

The high color temperature sources have a share emission in the largest blue that is hazardous to the eyes. It is right to :

  • do not fix this source in its emission axis;
  • not to stand too close for long periods.

Sensitive populations (children, without lens or with non-protective lenses) are the most exposed.

This risk highlights the importance of the fixture. He must not allow direct exposure to LED and must be equipped with:

  • either diffusing materials: a globe or bowl;
  • or optical systems: diffusers, reflectors, louvres, refractors, secondary optics.

The over-lighting, poor color rendering and inhomogeneous light should be avoided.

Led color: choose well

The lighting must be adapted to the activity:

  • Most activities in the domestic framework (precision work out) require a warm light color to neutral from 2700 K to 4500 K.
  • Also, for the comfort, color rendering should be close to that of natural light (CRI ≥ 80). The lighting experts therefore advise warm shades of neutral LED lamps.
  • In addition, these lamps have a low emissivity in the blue is a risk Photobiological low or even zero.

Good to know: indoor lighting, it is accepted that a higher luminance at 10,000 candela per m² night visual comfort.

Gallery

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Source: led-obzor.com

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Source: led-obzor.com

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Source: led-obzor.com

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Source: led-obzor.com

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Source: led-obzor.com

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Source: led-obzor.com

SMT SMD Side View LED 0402 0603 0805 1206 Chip Orange …

SMT SMD Side View LED 0402 0603 0805 1206 Chip Orange ...

Source: www.ledlight-components.com

1206 white Surface mount Diode 3.0-3.2V SMD LED 560-720mcd …

1206 white Surface mount Diode 3.0-3.2V SMD LED 560-720mcd ...

Source: www.xpandrally.com

Characteristics of LED Philips Z ES

Characteristics of LED Philips Z ES

Source: led-obzor.com

LED Strip Light 5050 and 3528, characteristics

LED Strip Light 5050 and 3528, characteristics

Source: led-obzor.com

Factory Price Smd Led 3528 Rgb For Shoe Lighting

Factory Price Smd Led 3528 Rgb For Shoe Lighting

Source: www.alibaba.com

LED Strip Light 5050 and 3528, characteristics

LED Strip Light 5050 and 3528, characteristics

Source: led-obzor.com

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Source: led-obzor.com

LED Strip Light SMD 5630 and 5730 power and characteristics

LED Strip Light SMD 5630 and 5730 power and characteristics

Source: led-obzor.com

SMD LEDs 5630 and 5730, characteristics and difference

SMD LEDs 5630 and 5730, characteristics and difference

Source: led-obzor.com

SMD LEDs 5630 and 5730, characteristics and difference

SMD LEDs 5630 and 5730, characteristics and difference

Source: led-obzor.com

LED Strip Light SMD 5630 and 5730 power and characteristics

LED Strip Light SMD 5630 and 5730 power and characteristics

Source: led-obzor.com

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Source: led-obzor.com

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Characteristics of SMD LEDs 3528, 5050, 5630, 5730

Source: led-obzor.com

SMD LEDs 5630 and 5730, characteristics and difference

SMD LEDs 5630 and 5730, characteristics and difference

Source: led-obzor.com