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LED Bulb QY-PD Series E27
Specifications:
| Model | Specification |
| QY-PD-1 | Φ41.5 5*1W Power:5W Color: Silvery white |
| QY-PD-2 | Φ43 5*1W Power:5W Color: Silvery white |
| QY-PD-3 | Φ60 5*1W Power:5W Color: Silvery white |
| QY-PD-4 | Φ60 5*1W Power:5W Color: Silvery white |
Light-Emitting Diodes (LED’s) are solid-state semiconductor devices that convert electrical energy directly into visible light.The inside of an LED is made up of various semiconductor materials. When an electrical current passes through the diode, the recombination of positive and negative charges within the different compositions results in the emission of photons (light). The selection of different semiconductor materials will affect the frequency (color) of the emitted light. LED’s are direct-current (DC) devices that require a transformer to convert alternating current (AC) to DC. The transformer also maintains a quality electrical supply for the LED device.
Almost all of the energy in an LED radiates within the visible spectrum. By contrast, incandescent light sources have the lowest efficiency of all conventional sources because a major portion of its emitted energy appears in the infra-red (IR) region of the spectrum. Other sources, such as fluorescent and HID lamps have a higher efficiency but still have loss mechanisms in the electrodes and within the discharge itself. Fluorescent lamps have additional losses in the conversion of the UV radiation to visible radiation by the phosphor. Advantages of using LED technology include:1. High-levels of brightness and intensity2. High-efficiency3. Low-voltage and current requirements4. Low heat5. High reliability (resistant to shock and vibration)6. No UV Rays7. Can be easily controlled and programmed Places for Use:1. Residential Light Fixtures2. Lobby & Hotel lighting3. High Ceilings & Chandeliers4. Signage & Display cases5. Shopping Malls & Amusement Parks6. Recessed Cans & Wall Sconces7. Cabinet/Under Cabinet8. Step & Cove Lighting9. Pathway Lighting10. Splash Lighting11. Column Lights12. Signal LightingLED Bulb QY-PD Series E27