1

Solar Hybrid Lighting Tested In California

A handful of buildings in California are beginning to try a new kind of indoor lighting: sunlight without windows. It’s called hybrid solar lighting, and it is being marketed by a company called Sunlight Direct. During the day, sunlight is captured and channeled into lighting fixtures, then at night, the fluorescent bulb takes over. On the roof, sunlight is captured …

Modern LED Candle: The Havaleena

It’s a 1 watt LED lamp called the Havaleena by Tayo Design Studio. These lights only require three AAA batteries to run, and fully charged batteries provide 20 hours of illumination. Each light comes with four colored filters and they are priced at $59.

1

The Best LED Floor Lamps

Even in these modern times, LED floor lamps are tricky to find. We, however, found one by Adesso, the Eternity Floor Lamp, which incorporates 20 white LEDs. So what can you expect from an LED floor lamp? Well, white LEDs will emit a concentrated, bluish-white light. So these lamps are great for accent lighting. As far as energy goes, these …

Optimal Green: Daylighting

Most modern buildings don’t take full advantage of daylight. Here, in the Plaza at PPL Center, a dramatic eight-story central glass atrium brings natural light deep into the core of the building, while extensive perimeter glazing provides abundant daylight.

1

20 LED Portable Spotlight

Not bad! Good marks on efficiency and portability. This spotlight has 20 LEDs on a rotating head. It runs up to 200 hours continuously on 3 D-size batteries.You can also plug it into a 12V DC lighter socket if you wish. It’s available from Amazon for $29.97

5

LED Floodlights

Enlux, a company in Arizona, has created floodlights built from LEDs. They did this by removing the diodes from their individual plastic housings and clustering them on a heat-dissipating circuit board, known as a light engine. They also created finned aluminum housing that spreads the heat across its surface. The 22-watt floodlight ($80) gives off about as much brightness as …

5

Compact Fluorescents (CFLs)

CFLs provide the same amount of light (lumens) as standard incandescent bulbs, but have lower wattage ratings. A standard incandescent light is very inefficient because much of the energy it uses is turned into heat instead of light. A compact fluorescent bulb turns more of its energy into light and less into heat. It uses 75 percent less energy than …

4

LEDs (Light Emitting Diodes)

In recent years, significant advances have been made in the manufacturing of LED bulbs. Once used only as power indicators on appliances, LEDs can now be used to light a room or in powerful flashlights. Some of the advantages of LEDs are: LEDs use about 1/50 of the power of standard incandescent bulbs, and half the power of compact fluorescents …

1

Help With Light Bulbs Terms

Bulb Types   Bulb Base Types Color Temperature The color temperature of light refers to the temperature to which one would have to heat a "black body" source to produce light of similar spectral characteristics. Color Temperature is expressed in degrees Kelvin (K). Low color temperature implies warmer (more yellow/red) light while high color temperature implies a colder (more blue) …