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LED LAMPS
LED LAMPS
LEDs (Light Emitting Diodes) are becoming one of the most energy-efficient and energy-saving technologies available today. They provide significant energy savings while producing equivalent light output for many applications. LEDs’ benefits include long life (10 years or more), cool operating temperatures, no mercury content so, combined with their lower energy consumption, LEDs provide an attractive alternative to other lighting products.
Below are just some samples of the various types of low- and high-power LED lamps we have available, which come in both warm white (2700K – 3000K) and cool white (5000K} versions.
| TYPE | WATTS | DESCRIPTION | BASE | VOLTAGE |
|---|---|---|---|---|
| A19 | 9.5 | Standard Light Bulb | E26 Medium | 120 |
| MR16 | 9 | Small Spot or Flood | Bi-Pin | 12 |
| PAR38 | 18-21 | Large Flood, 25 or 40 degree | E26 Medium | 120 |
| PAR30 | 14-16 | Medium Flood, 25 or 40 degree | E26 Medium | 120 |
| PAR20 | 9-11 | Small Flood, 25 or 40 degree | E26 Medium | 120 |
| Candle | 2-5 | Flame Tip | E26 or E12 | 120 |
| Post Top | 20-45 | 180 or 360 degree | E26 Medium | 120 |
| T8 tube | 18-25 | Usually deletes use of electronic ballast | Std. Bi-Pin | 120 |
LED COMPONENTS
The LED lamp is composed of the semiconductor chip, the driver or power supply circuit and the housing which usually incorporates a heat sink. Each component is important in the manufacture and use of a LED and each contributes to the success of the whole.
- CHIP - This is a semiconductor component of the LED, the diode part of the Light Emitting Diode. The process of its manufacture is most important to control since the ‘chip’s’ performance dictates, in large part, the performance of light output, color, reliability and repeatability. The manufacturing process creates significant inherent variations that impact lumens, color temperature and voltage of the LEDs. So, manufacturers sort their production into lumen, color and voltage bins which allows them to select only those chips that meet their acceptable performance ranges.
- DRIVER - This is the circuitry, on a printed circuit board that converts the input voltage into a voltage to power the semiconductor chip. The driver circuit should be designed to match the characteristics of the Chip it is supposed to control. By overdriving the chip with a higher amperage, the chip will be brighter (more lumens), but the heat generated will reduce the life of the chip. Electronic components can vary their ratings by up to +/- 20%, so a lower tolerance component makes the circuit operation more reliable and predictable giving a better quality LED Driver and a longer LED life.
- HEAT SINK - The heat sink is a thermally conductive medium on which the chip and the PCB are mounted and is designed to draw heat away from the chip and PCB. The critical measurement in the life expectancy of a LED is the Junction Temperature of the semiconductor chip. The term “life expectancy” is defined as the point at which the LED source diminishes to 70% of its initial light output.
Applications
- Jewelry and Retail Store Display and Counter Lighting
- Resort and Hotel Rooms
- Accent, Recessed and Track lighting
- Post Top Lighting
