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

සිංහල පරිවර්තනය
Submit Post
Submit Post

Latest topics

» Marriet Hotel Going to Sell their 100% Stake Keep On Eye EAST
by NCC Today at 12:35 pm

» EAST EPF Deal Finalized Keep On Eye
by NCC Today at 12:35 pm

» CTCE CTCE CTCE CTCE
by nosf766 Today at 12:26 pm

» CTCE SHARE TO WATCH
by roshan1039 Today at 10:46 am

» ANILA ANILA ANILANA
by Ahcha Today at 10:29 am

» Technical Analysis
by nzr Today at 10:27 am

» PLAYERS PICK OF THE DAY
by roshan1039 Today at 10:23 am

» LDEV - MADU - BALA - WATCH
by ranferdi Today at 8:57 am

» ##FUN TOONS###
by ruwan326 Today at 7:40 am

» IF THE ADMIN STILL ALIVE PLEASE RESPOND
by ruwan326 Today at 7:29 am

» KVAL profits improve on the back of better margins and lower losses from associate
by arjunaupendra Today at 4:54 am

» We have JP54, D2 N D6 available on FOB and CIF basis for urgent lift.
by neftegazpetroleumsales Today at 3:09 am

» We Provider Verifiable BG,SBLC.MT103,MT760
by kimsungnyon02 Yesterday at 10:34 pm

» Project finance/Bg,Sblc specifically for lease
by kimsungnyon02 Yesterday at 9:58 pm

» Genuine bank instrument for lease/sale,such as BG, SBLC, MTN
by kimsungnyon02 Yesterday at 9:53 pm

» BG / SBLC / LC / DLC / MTN ETC AVAILABLE FOR LEASE
by kimsungnyon02 Yesterday at 9:51 pm

» We Currently Have Providers of BG/SBLC and Other Financial Instruments
by kimsungnyon02 Yesterday at 9:49 pm

» Financial Offer/Business Funding Through Bank Instruments
by kimsungnyon02 Yesterday at 9:47 pm

» CSE THIS WEEK
by ruwan326 Yesterday at 9:03 pm

» Financial Reports Q-4 2018
by ruwan326 Yesterday at 8:54 pm

» FOREIGN NEWS
by ruwan326 Yesterday at 8:52 pm

» Daily Foreign Transactions
by ruwan326 Yesterday at 8:51 pm

» Performance of the Market
by ruwan326 Yesterday at 8:49 pm

» CROSSINGS TODAY
by ruwan326 Yesterday at 8:21 pm

» Daily Stock Market Update
by Insights Equity Yesterday at 5:29 pm

» Sri Lanka's EPF loses most from Laugfs, Dockyard, Carsons; gains from banks
by charithaa Yesterday at 12:49 pm

» Sri Lanka's Anilana Hotels says to get more cash from Singapore’s SOMAP
by charithaa Yesterday at 12:47 pm

» Tea industry’s performance in 2018 and prospects for 2019
by ruwan326 Yesterday at 12:44 pm

» HOPL, TPL, KFP, TSML, MGT results analysis
by arjunaupendra Yesterday at 6:03 am

» LOFC AND UBC WILL RUN FROM TOMORROW
by fireshelter Mon Jan 21, 2019 10:54 pm

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

PrasannaMani
Manager - Equity Analytics
Manager - Equity Analytics

Chinwi

Chinwi
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

soileconomy
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