Education News Forum Index Education News
Get latest education news and other educational alerts in educationnest.com
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 




lights

 
Post new topic   Reply to topic    Education News Forum Index -> Welcome to Education Gateway
View previous topic :: View next topic  
Author Message
lights34



Joined: 14 Sep 2013
Posts: 1

PostPosted: Sat Sep 14, 2013 5:34 am    Post subject: lights Reply with quote

The pros and cons of energy-efficient light bulbs have been much debated over the last decade. The main focus of the

discussion has been CFL light bulbs. Introduced in the '80s, these electricity sippers have been greatly improved over the

years. CFL light bulbs are enthusiastically endorsed by the Energy Star program and are the most popular green light bulbs

among consumers, businesses and even public institutions looking to reduce lighting costs and shrink their carbon footprint.


Among the various energy-efficient light bulbs, CFL light bulbs have notable drawbacks when compared to traditional

incandescent bulbs, their higher purchase price, slower start-up time and inferior dimmability among them. CFLs also contain

a small amount of mercury and must be recycled at the end of their life. On the plus side, these energy-efficient light bulbs

pay for themselves in energy savings quickly when used for three or more hours per day. The best CFL light bulbs also cast a

flattering light, much better than when they were first offered. CFLs are a solid choice for consumers seeking more

eco-friendly lighting, but there's a new option to consider.


A Legislative and Regulatory Foundation for Energy Efficiency: More than Just CFL Light Bulbs


Legislation passed by the U.S. government in 2007 mandates efficiency gains for commonly-used light bulbs by January

2014. Starting in 2012 with higher wattages, light bulbs must be about 30% more energy efficient than current standards

require. While CFL light bulbs meet this challenge, the Energy Independence and Security Act (EISA) doesn't favor any

specific technology. The broad standards have created opportunities for leading lighting manufacturers, such as Philips and

General Electric, that are committed to developing innovative energy-efficient light bulbs which address a wider range of

lighting applications than CFL light bulbs alone.


While the 2007 EISA covered general use bulbs, new rules for the improved energy efficiency of so-called PAR (Parabolic

Aluminized Reflector) lamps (commonly used in residential and commercial downlighting applications) were issued in June by

the U.S. Secretary of Energy Stephen Chu. These regulations are expected to go into effect in the second half of 2012.

Consumers will see some exciting changes as manufacturers strive to increase the efficiency of these green light bulbs to meet

the new standards. For lower wattage lamps, i.e. those of less than 100 watts, the 2012 standards will drive efficiency up by

24% to 87% depending on bulb diameter, wattage and voltage. This mandate is also technologically neutral, leaving

manufacturers free to unleash their ingenuity in designing the energy-efficient light bulbs they wish to produce and make

available to the U.S. market.


High-Efficiency Halogen Lamps - A Clear Choice in Green Light Bulbs


Lamp manufacturers have been aware of consumer dissatisfaction with CFL light bulbs and have actively participated in

recent legislative and regulatory processes aimed at arresting the pace of climate change due to lighting-related greenhouse

gas emissions. Therefore, proactive lighting companies have been investing resources in R&D to ensure compliance with

forthcoming laws and regulations while giving individual and business consumers a wider choice of energy-efficient light bulbs.


As a result, right now, almost three years ahead of schedule, screw-in high efficiency halogen lamps are on the market. These

energy-efficient light bulbs have several advantages over CFL light bulbs:

Instant-on technology
Sparkling white light: not blue, not butterscotch, just crisp and clear
Superior dimmability (and because they're in the incandescent family, extended lifespan when dimmed)
Compatible with motion control sensors
Stable light output: will fire regardless of ambient temperature
Suitable for use in fully-enclosed fixtures
100% Mercury-free



What makes these energy-efficient light bulbs greener than the traditional bulbs being phased out?


High-efficiency halogens use less electricity to produce the same amount of light.

Example 1: Philips offers a 70 watt general-purpose bulb, which is equivalent to a 100 watt standard incandescent. That's

30% more energy efficient and nearly 10% more efficient than required by EISA by January 1, 2012.

High efficiency halogens last longer than traditional incandescent bulbs.

Example 2: GE's 48 watt PAR30 bulb (itself 20% more energy efficient than the applicable DOE 2012 rules for

incandescent reflectors) has a 4,200 hour average rated life, 40% longer than the 75 watt halogen lamp it is designed to

replace.

Extra life translates into more time to realize financial and carbon emissions savings.



In Conclusion


For consumers, business owners and public institutions committed to reducing energy consumption through simple changes in

lighting choices, there are energy-efficient light bulbs for every need. Innovative new products are already here with more

being introduced all the time.
_________________
lighting store
Back to top
View user's profile Send private message Visit poster's website
ranyhoss88



Joined: 17 Sep 2013
Posts: 10

PostPosted: Tue Sep 17, 2013 9:12 am    Post subject: Reply with quote

You may read ten different books on studio lighting by the "experts," and quite likely you will get ten totally different opinions about what constitutes proper lighting. Ninety nine times out of a hundred, clients who come into your studio do not care about the technical aspects of your lighting - what constitutes proper lighting. They simply want to look great in their portraits, and it's your job as a professional portrait photographer to help them do just that. The system of lighting used in our portrait studio is simple to understand, easy to work with, and it helps our clients look their best. This is what really matters most.
_________________
dummy cameras
dummy cctv
Back to top
View user's profile Send private message Visit poster's website
emanuelkelley3



Joined: 21 Sep 2013
Posts: 11

PostPosted: Sat Sep 21, 2013 6:22 am    Post subject: Reply with quote

Light is the raw material of a photographer. Much as the painter works with paint and the sculptor works with stone, the photographer works with light. Just as a painter or sculptor must gain masterful insight into the behavior of the raw materials of their arts, so must the portrait photographer gain a keen understanding of the behavior of light. Lighting can make a big impact on a person's health, mood and ability to perform their job. Many businesses have realized using the proper light bulbs can increase a person's ability to think through complex situations, enable a person to make an informed decision and create a positive atmosphere. However, the realization of using the proper light bulbs has not been carried over into the home to enhance one's home life, but there are many reasons why it should.
_________________
debt relief
consolidation loans
Back to top
View user's profile Send private message Visit poster's website
Free Forum






PostPosted:      Post subject: ForumsLand.com

Back to top
Display posts from previous:   
Post new topic   Reply to topic    Education News Forum Index -> Welcome to Education Gateway All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Forum hosted by ForumsLand.com - 100% free forum. Powered by phpBB 2.