Victor

 Victor Rodriguez Year 11 Lighting        There are several things to consider when choosing a desk lamp for studying or doing homework. Obviously, you need a lamp, but natural light is much better in two ways: it is more ecologic and it is better to the eyesight. You should not use the lamp if your room has lots of windows or if there is enough solar light. You should not use either if you are using the overhead lighting. In these cases, the lamp would be useful just for decoration. However, if you do not have enough light with the overhead lighting and you need more illumination, then you do need a lamp providing more light.

You have to think about the lamp you __ need __ to buy, it depends on several things, one of them is the space you have on your desk: if you use to have your desk plain of folders or/and stuff, if you have a computer taking up too much space, if you have a large desktop, etc.

Another important thing to consider when buying the lamp is the type of lighting that you need. I am going to list some different types of lighting.

High-Intensity Discharge lighting

High-intensity discharge, known as HID, provides the longest efficacy and longest service life of any lighting type. They can save 75%-90% of lighting energy when they replace incandescent lamps.



Fluorescent lighting

These type of lamps only use 25%-30% of the energy used by incandescent lamps, a normal light bulb, providing the same illumination. They use to last ten times longer than incandescent lamps



Incandescent Lighting

This is the most common type of lighting used in homes. It has traditionally delivered about 85% of household illuimination. These lamps light up instantly, providing a warm light and excellent colour rendition.

Low-Pressure Sodium Lighting

Low-pressure sodium lamps provide the most energy-efficient outdoor lighting compared to high-intensity discharge lighting, but they have very poor color rendition. Typical applications include highway and security lighting, where color isn't important.



<span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 15pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;">Outdoor Solar Lighting

<span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;">Outdoor solar lights are easy to install and virtually maintenance free. Best of all, they provide free electricity. <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;"> <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;">

<span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 15pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;">Indoor Lighting Design

<span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; margin-bottom: 0cm; text-decoration: none;">When designing indoor lighting for energy efficiency, you want to consider some basic design principles and methods. <span style="background: none transparent scroll repeat 0% 0%; color: #000000; display: block; font-size: 11pt; font-weight: normal; text-decoration: none;">Energy-efficient lighting design principles include the following:
 * Remember that more light is not necessarily better. Human visual performance depends on light quality as well as quantity.
 * Match the amount and quality of light to the performed function.
 * Install task lights where needed and reduce ambient light elsewhere.
 * Use energy-efficient lighting components, controls, and systems.
 * Maximize the use of daylighting.