World Energy Crisis forces us never stop looking for better lighting. Compact fluorescent lamp replacing incandescent was a good start. As energy issue worsening, we have to find a better lighthing product that saves more energy and more eco-friendly than CFL. The answer is LED Light.
What is LED?
- LED is for Light Emitting Diode. The main part is a semiconductor which can convert electricity to light source directly. The semiconductor (also the LED chip) is placed on a wired holder which is enclosed in lens while connected with electronic poles. More
Why is LED
- Efficiency: Diodes emit little heat and run at very low amperes. It emits more light per watt and efficiency is not affected by shape and size.
- Lifetime: LEDs can have a relatively long useful life. It is estimated 35,000 to 50,000 hours of useful life (compared to 10,000 CFL and 1000 incandescent)
- Environmentally Friendly: No mercury, sodium(Na) hazardous substance. Lower electricity consumption causes less amount of CO2 emission
- Economically sustainable: LED Light is a cost-effective option in a long term for lighting because of their long lifetime and high efficiency. More
What are LEDs?
Where are LEDs?
- LED lights lit up City Library in Pasadena C.A. 900-watt metal-halide lighting was replaced in each pendant fixture by a 95-watt LED cluster product.
- UK hospital installed LEDs to save energy costs and improve illumination. 150-200W Halogen fixtures were replaced by LED spot lights among which the highest wattage is 54W.
- Fremont, California began LED streetlight installation project. 260 existing high pressure sodium (HPS) streetlights will be replaced with LED fixtures, which is expected to save $10,000 per year in energy costs and reduce electricity consumption by 79,000 kw/H.
