Lighting And Appliances Lighting With FLi P the
- Slides: 17
Lighting And Appliances
Lighting With FLi. P the Switch Lighting professionals have improved the original Incandescent bulb
3 Types Of Lighting Incandescent Fluorescent LED (Light Emitting Diodes)
Incandescent A glass envelope encloses a filament of coiled tungsten wire that glows when an electric current passes through Inexpensive Generates heat Only up to 10% of the electricity is converted into light Doesn’t last very long
Halogen Bulbs Are Incandescent Halogen also called quartz Can be a fire hazard
Fluorescent �Can be shaped in tubes like in our classroom. �Electricity provides heat that causes low pressure mercury vapor within the lamp to produce ultraviolet radiation. This causes a phosphor coating along the inside of the tube to radiate light. � 3 sizes - the smaller the size, the more efficient T 12 (40 watts) T 8 (32 watts) T 5 (21 watts)
Compact Fluorescent (CFLs) are often called the curly bulbs Less expensive to operate Last longer Contain a small amount of mercury
Light Emitting Diodes (LED) Electricity passes through a semiconductor material illuminating the tiny light sources we call LEDs. Cool to the touch Extremely efficient Last a long time Instant on Don’t contain mercury
FLi. P the Switch It’s not just about your choice of bulbs, it’s also how you use them so FLi. P the Switch when lighting isn’t needed.
Exit Signs Must be on 24 hours a day / 7 days a week LED Photoluminescent
Gym Lighting High-Intensity Discharge Lamps: Mercury Vapor Metal Halide High-Pressure Sodium High Bay Lighting: Fluorescent LED
Outside Lighting High-Intensity Discharge Lamps – Metal Halide LED – more efficient
Equipment How can you reduce energy usage by your school and your home’s equipment?
Choose Wisely Look for the ENERGY STAR label Read and compare the Energy Guide label Keep it cleaned and oiled
Take Care Of Equipment Watch for things that make heat Keep it clean and oiled
Vampires Some equipment uses energy even when you think it’s off Turn it off completely with a power strip
You Have The Power! www. Energy. Stewards. net/Student. Power
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