Sri Lanka Equity Forum
Dear Reader,

Registration with the Sri Lanka Equity Forum would enable you to enjoy an array of other services such as Member Rankings, User Groups, Own Posts & Profile, Exclusive Research, Live Chat Box etc..

All information contained in this forum is subject to Disclaimer Notice published.


Thank You
Sri Lanka Equity Forum

Discussion Forum for Stock Market Investors in Sri Lanka

Submit Post
සිංහල පරිවර්තනය
Search
 
 

Display results as :
 

 


Rechercher Advanced Search

Latest topics

» FUTURE GEMS.....
by DS Wijesinghe Today at 5:40 pm

» Dividend payments
by alphamm Yesterday at 9:52 pm

» VONE , is it time to sell or holds
by 2017 Cse Yesterday at 9:19 pm

» MGT & REEF ????
by Ran49 Yesterday at 8:06 pm

» UBC KEEP WATCHING
by Ran49 Yesterday at 8:04 pm

» Sampath Bank PLC - A giant awakening
by EquityChamp Yesterday at 6:55 pm

» COCR can be attractive
by SUSPENS Yesterday at 6:54 pm

» COCR will be a silent runner
by suku502 Yesterday at 1:33 pm

» Orient Finance PLC- possible future star
by DS Wijesinghe Thu Apr 19, 2018 10:29 pm

» Companies to invest long term
by EquityChamp Thu Apr 19, 2018 6:56 pm

» The Stock Chat by EquityChamp
by glad Thu Apr 19, 2018 11:12 am

» Blue Chip Companies
by glad Wed Apr 18, 2018 7:22 am

» WHAT HAPPENED TO DIST?
by EquityChamp Tue Apr 17, 2018 6:51 pm

» JINS Share Repurchase
by EquityChamp Tue Apr 17, 2018 7:03 am

» LIOC N.........................
by EquityChamp Mon Apr 16, 2018 1:54 pm

» Abans finance PLC in deep trouble?
by Wimal Modawansa Fri Apr 13, 2018 8:03 pm

» Singer Finance worth to look at
by anges Thu Apr 12, 2018 6:37 pm

» Laxapana Batteries - A New Begining
by EquityChamp Thu Apr 12, 2018 7:10 am

» Kelani Tyres PLC - Invest for the future
by EquityChamp Thu Apr 12, 2018 6:59 am

» Teejay Jersey Lanka PLC - Depreciated Rupee had a very positive impact
by anges Wed Apr 11, 2018 6:36 pm

Forum Disclaimer

The information contained in this forum have been submitted by third parties directly without any verification by us. The information available in this forum is not researched or purported to be complete description of the subject matter referred to herein. We do not under any circumstances whatsoever guarantee the accuracy and completeness information contained herein.

www.srilankaequity.com its blogs, forums, subdomains and/or its affiliates and/or its web masters, administrators or moderators shall not in any way be responsible or liable for loss or damage which any person or party may sustain or incur by relying on the contents of this report and acting directly or indirectly in any manner whatsoever.

Trading or investing in stocks & commodities is a high risk activity. Any action you choose to take in the markets is totally your own responsibility, www.srilankaequity.com its blogs, forums, subdomains and/or its affiliates and/or its web masters, administrators or moderators shall not be liable for any, direct or indirect, consequential or incidental damages or loss arising out of the use of this information. The information on this website is neither an offer to sell nor solicitation to buy any of the securities mentioned herein. The writers may or may not be trading in the securities mentioned.

You are not connected. Please login or register

Sri Lanka Equity Forum » Stock Market Talk » Public requested to switch to CFL and LED bulbs to save energy

Public requested to switch to CFL and LED bulbs to save energy

Go down  Message [Page 1 of 1]

PrasannaMani

avatar
Manager - Equity Analytics
Manager - Equity Analytics

Chinwi

avatar
Associate Director - Equity Analytics
Associate Director - Equity Analytics
CFL are Compact Florescent Light . They emit most of their energy as heat, not light, making them inefficient as well.

If you touch top of a CFL while burning you can feel it.

Most efficient therefore is LED bulb.
Incandescent light bulbs are the most inefficient.

Each CFL bulb contains 1mg-5mg of Mercury. This is the major risk in CFL. Mercury is very toxic to your health and the environment.

The Govt. should discourage CFL and popularize LED

Some companies sell branded LED bulbs with very high margin. I buy them from 1st cross street Pettah. hint : 9W @ 120/-

soileconomy

avatar
Vice President - Equity Analytics
Vice President - Equity Analytics
I heard inferior quality bulbs are in the market.you have to look into lumin reading also ?

sanjulanka


Manager - Equity Analytics
Manager - Equity Analytics
@Chinwi wrote:CFL are Compact Florescent Light . They emit  most of their energy  as heat, not light, making them   inefficient as well.

If you touch top of a CFL while burning you can feel it.

Most efficient therefore is LED bulb.
Incandescent light bulbs are the most inefficient.

Each CFL bulb contains 1mg-5mg of Mercury. This is the major risk in CFL. Mercury is very toxic to your health and the environment.

The Govt. should discourage CFL and popularize LED

Some companies sell  branded LED bulbs with very high margin. I buy them from 1st cross street Pettah.  hint : 9W @ 120/-
Basketball Basketball Basketball

Gallardo


Manager - Equity Analytics
Manager - Equity Analytics
@Chinwi wrote:CFL are Compact Florescent Light . They emit  most of their energy  as heat, not light, making them   inefficient as well.

If you touch top of a CFL while burning you can feel it. 

Most efficient therefore is LED bulb. 
Incandescent light bulbs are the most inefficient. 

Each CFL bulb contains 1mg-5mg of Mercury. This is the major risk in CFL. Mercury is very toxic to your health and the environment. 

The Govt. should discourage CFL and popularize LED

Some companies sell  branded LED bulbs with very high margin. I buy them from 1st cross street Pettah.  hint : 9W @ 120/-
  



Led lights also generate heat but are the most efficient of all existing lighting types.  

Three important suggestions though: Although the cheaper Pettah bulbs are attractive they may not deliver on the advertised lifetime of use.  They are cheaper because they often have a lower quality build specification so whilst most branded LEDs can actually last the promised 30,000 hours for example, cheap ones may have a fed LEDs fail and may not carry a guarantee.  About 5-30% of the individual LEDs on some cheap bulbs fail within weeks.   Still in less frequently used parts of the house, cheaper LED bulbs are more cost effective even allowing for failure compared to pricey branded LED bulbs.

However in heavily used parts of the house, where there is a lot of newspaper reading or TV viewing, a quality LED bulb is important.  LEDs actually flicker many times per second.  It actually goes on and off about 100x times per second but our brain can't process that fast enough to see it.  Therefore we see it as constant light when it's not.  A higher, longer amount of time ON per second is better for reading, especially for children and students who otherwise may have headaches as a result of this. Less flicker on high quality bulbs so pay more where it matters! 

Last but not least, colour temperature should be accurate and as advertised so the higher quality ones tend to do this better.  While the white daylight bulbs are good for offices during the day, home use in the evening should have the WARM white type with a more natural, more yellow glow.  Research shows that the White Daylight LEDs emit more blue light which affects our body clock and reduces quality sleep later in the night.  The Warm white (slightly yellow/candle light) colour is best for evening use.  Some suspect retina damage with the Blue light LEDs (White Daylight versions of low quality might be the worst offenders!)

Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum