LED light bulbs vs flourescent light bulbs - electric consumption

**Retz** · October 8th, 2012 11:00 AM

Originally Posted by Ry_Tower

Frosted siya pero ang lakas pa din, mahirap tignan directly.

Ic. 10,000 burning hours yan? kung 10hrs/day mo ginagamit everyday aabot hangan 3 years.

**CVT** · October 8th, 2012 11:31 AM

Originally Posted by Ry_Tower

Bought 2 GES Led lights. 8-10 hours per day gamit, mga 6 months bawi na. P723 yung 9W(810lumnes) at P515 yung 5.5W(470lumens).
Mababa lumens rating nila pero maliwanag talaga. Parang hindi kapani-paniwala tuloy yung ratings ng DOE na yellow sticker na nakalagay sa mga CFL dito sa atin esp Firefly at Focus.

Bro.,- ano ba'ng rating ng fluorescent bulb ang pinalitan mo....

Compute ko lang ha?

Assuming 25W(P160) ang pinalitan ng 5.5W, 470lumens P515 na LED bulb...

Assuming P8/KW-Hr.

Then your savings in consumption would be (0.025KW-0.0055KW)*10hours*P8/KW-Hr = P1.56
In one month,- 30*P1.56 = P46.8

Assuming na sabay silang mapupundi
Time to recover the price difference would then be (P515-P160)/P46.8/month = 7.58 months

Assuming na every 1 year napupundi ang CFL (fluorescent) bulb mo :
>>> Kung every 11 months,- pundi ang LED bulb mo,- pingpong ang savings; it will really take a while, dahil nga masyadong mahal ang LED pa sa ngayon....

17.0K:out:

**Ry_Tower** · October 8th, 2012 12:03 PM

Originally Posted by CVT

Bro.,- ano ba'ng rating ng fluorescent bulb ang pinalitan mo....

Compute ko lang ha?

Assuming 25W(P160) ang pinalitan ng 5.5W, 470lumens P515 na LED bulb...

Assuming P8/KW-Hr.

Then your savings in consumption would be (0.025KW-0.0055KW)*10hours*P8/KW-Hr = P1.56
In one month,- 30*P1.56 = P46.8

Assuming na sabay silang mapupundi
Time to recover the price difference would then be (P515-P160)/P46.8/month = 7.58 months

Assuming na every 1 year napupundi ang CFL (fluorescent) bulb mo :
>>> Kung every 11 months,- pundi ang LED bulb mo,- pingpong ang savings; it will really take a while, dahil nga masyadong mahal ang LED pa sa ngayon....

17.0K:out:

CFL less than a year talaga. Pero LED can last up to 6 years based on my modest computation. Actually 30,000 hours ang lifespan rating niya (gaya ng firefly although that is very dubious) pero kahit 25,000 hours lang sulit pa rin. It may take a while to get back the investment but IMO it's an investment.

**CVT** · October 8th, 2012 12:16 PM

Originally Posted by Retz

Ic. 10,000 burning hours yan? kung 10hrs/day mo ginagamit everyday aabot hangan 3 years.

Hindi totoo iyan... Siyempre pa, best case palagi ang sinasabi ng mga manufacturers.

Para namang bago kayo sa ganyang klase ng marketing....

Iyon ngang CFL na 3 years din daw,- minsan 1 year lang,- pundido na...

17.0K:out:

**CVT** · October 8th, 2012 12:18 PM

Originally Posted by Ry_Tower

CFL less than a year talaga. Pero LED can last up to 6 years based on my modest computation. Actually 30,000 hours ang lifespan rating niya (gaya ng firefly although that is very dubious) pero kahit 25,000 hours lang sulit pa rin. It may take a while to get back the investment but IMO it's an investment.

Sige bro,- balitaan mo kami....

Yes, LEDs have come a looooooonnnnnggggg way....

Noon,- circuit state/condition and then segment display lang ang gamit namin diyan sa electronic boards....

Tapos ngayon,- outdoor lighting na ang application niya....

17.0K:out:

**Retz** · October 8th, 2012 12:21 PM

Originally Posted by CVT

Hindi totoo iyan... Siyempre pa, best case palagi ang sinasabi ng mga manufacturers.

Para namang bago kayo sa ganyang klase ng marketing....

Iyon ngang CFL na 3 years din daw,- minsan 1 year lang,- pundido na...

17.0K:out:

Sir CVT, may nagsabi sa akin na supplier that the led itself could last more than 5 years ung inverter inside the led would last for only 3 years and after that, bababa na ang lumens. Yan daw standard ng LED. Kung tatagal lang ng 1 year baka ung mga ibang low quality LED na yan.

**CVT** · October 8th, 2012 12:44 PM

Originally Posted by Retz

Sir CVT, may nagsabi sa akin na supplier that the led itself could last more than 5 years ung inverter inside the led would last for only 3 years and after that, bababa na ang lumens. Yan daw standard ng LED. Kung tatagal lang ng 1 year baka ung mga ibang low quality LED na yan.

We will see bro....

Pero siyempre, less life of the product >>> more frequent replacement >>> more volume >>> more profit....

17.0K:out:

**Ry_Tower** · October 8th, 2012 12:55 PM

^ Planned obsolescence. Kaya yung 25,000hours lang ang ini-expect ko eh, hindi yung 30,000 as marketed. Kung 20,000 hours naman, okay na rin for me. At least 3 times ng CFL so bawing-bawi na nga.

**Horsepower** · October 8th, 2012 01:12 PM

I use 23w CFL (Panasonic) spiral for interior lighting. mga 3yrs na, ganun pa rin kaliwanag. Yung ginagamit ko sa labas na may photosensor, some china brand, 1yr lang, sira na.

I'm planning, though, to replace all of these with LED. Meron na kaya kasing liwanag ng Cree P4 (or brighter)? gusto ko kasi recessed lighting. Isa kasi sa mga projects ko in the near future, gawin LED lighted ang buong bahay. Dual power, AC and DC (para pag power outage + possible Solar power system). Tapos isang controller lang.

**crazy_boy** · October 8th, 2012 02:14 PM

Originally Posted by Horsepower

I use 23w CFL (Panasonic) spiral for interior lighting. mga 3yrs na, ganun pa rin kaliwanag. Yung ginagamit ko sa labas na may photosensor, some china brand, 1yr lang, sira na.

I'm planning, though, to replace all of these with LED. Meron na kaya kasing liwanag ng Cree P4 (or brighter)? gusto ko kasi recessed lighting. Isa kasi sa mga projects ko in the near future, gawin LED lighted ang buong bahay. Dual power, AC and DC (para pag power outage + possible Solar power system). Tapos isang controller lang.

actually gusto ko din gumaga ng solar/wind power sa amin. kaso mejo madugo yata yung project pag hindi ka electical engineer.