i think what kenny tring to say is not inverter fluorescent light... should be electronic ballast type... this light do not have starter... Indeed electronic ballast type of fluorescent are not so long lasting from my personnal experience...

Actually is not call inverter. It is an electronic ballast. Correct the power factor and on instantly without flicking. I ve few and easlly burn out. Once ON, spark come out and little explosion with some smell. Now no more use. I believe the aircon inverter have a wider voltage range. With longtime R&D, it improve alot.

I used it before, those electronic ballast can be not realiable as well, blown 4 of out 6 in one year time(in my case). I noticed all those electronic ballast are mainly from Chapalang brand, seldom got well known producers one. Just my experience.

I wonder why less well known producers want to venture in this area.

Benefit of electronic ballast, your light won't blink blink when switch on, just light up. Other than that, don't see other major benefit of it, especially the reliability side which is the major disadvantage.

You guys are right - I made a mistake - It's an electronic ballast rather than inverter (don't recall why I call it an inverter), but I somewhat recalled a sub-component of a E-ballast has an inverter to change DC -> AC. Anyway, it cycles the frequency ~ 20,000Hz, so no flicker, good for your eyes in the longer term. 60Hz lights are not the best (biologically) for reading. And it blow up after a few months - and lost confidence in high current electronics.

So the uncertainty is the lifetime of an Air-Cond inverter. Sounds like everyone's inverter is still working well I once asked an A-C engineer he says these inverters are quite reliable but hard to gauge life time since the technology (and market acceptance) hasn't been more than 4 years so can't really find people who can say "I've used it more than 4 years without problems". Most users < 4 years.

The aircon inverter not comeout just 4yrs. This technology is quite long time. It just arrive here few yrs ago but not others country. They already have inverter type long ago. We are not advance country. It depend on manufacturing when is the right time to market here.

Let me know your contact. I will call the company and introduce you to them. Commission 50:50

Smart partnership !!

This is an interesting topic. Definitely heat loss in power cable is the culprit but how much heat loss is significant. For e.g. I have a vacuum cleaner that's 1.6kW and when I power it up for ~1 hour, the power cables tend to get hot enough you don't want to touch it. So now I'm wondering if they are under rated.

And I think the cable layout can have a significant effect. Consider if you power a series of machines from the same cable instead of using individual cables. If each machine is 1kW and draws ~4A (1kW/230V), 5 machines will draw 20A already.

Anyway am no power nor cable experts here. I'd be very curious to know what's am_eniey's washing machine's power rating.


I thought inverter converts dc to ac? And the reason is perhaps the difference between using dc and ac motor...
Yeah just checked wiki, it's due to inability to control a dc motor easily so they just switch it on or off while ac motor can be controlled by changing the ac frequency.

This post has been edited by tgrrr: Aug 3 2009, 04:41 PM

i have decided to proceed. Strong recommendation by friends.

any plans to do up the home insulation??we should be getting a better price if negotiate together.

Eh.. You mean the power cable from the vacuum? How can the manufacturing don't know the cable problem.

The aircon compressor cannot use dc motor. Only can use ac motor. The inverter is use to change the frequency from max 60hz.

but no matter when it was introduced, it saves my pocket every month.

Anyone tried those "Plug-in Electricity Saver" thingy that says can save like X % of electricity?
Does it really work?




www.shchoy.com

This post has been edited by shchoy: Aug 5 2009, 06:16 PM

I am here to write the good comment as a satisfied customer.

My house just installed the Cellulose insulation yesterday. They came all the way from Old Klang Road to Kuala Pilah, Negeri Sembilan. 2 hours journey, 3 persons with a small lorry. hehe.

Felt the immediate cooling right after installation. Fantastic!!! The job takes 3 - 4 hours to complete. RM4.5k well spent. Normal double storey house should be less than this amount. Probably RM3k++ only? Their price is RM3.50/sq ft. So it depends on how large your house's ceiling area.

It's cheap compared buying a 1.5 - 2HP air-cond and long term electricity bill counts.

Call TCLMalaysia (Mr. Lee or Mr. Tee, both are directors) and tell them you were introduced by Marcus, from Negeri Sembilan, instant discount given.

Website is here. http://tclmalaysia.com/system_pcinsul.php

The bad thing is, they don't go too far out from KL.... But i guess Ipoh, Melaka, Pahang still OK.




This post has been edited by cloud9_lee: Aug 5 2009, 06:33 PM

There was also another thread on this: http://forum.lowyat.net/topic/1092629

How's the feeling at night?

Technically insulations prevents heat coming in, also prevents cold air from coming in.

no logic behind the product... correcting the power factor does not really save energy... as our tariff is based on KiloWatt hour...

and energy cannot be destroy or create... no matter how good u corrected the power factor... P (power) = V (volt) x I (current) x power factor

Cold air from air cond. Dusty air from outside

Malaysia no winter; so no cold air.

This is being discussed before. http://forum.lowyat.net/index.php?showtopic=973128

Is your house facing west?

My side wall is facing west, i worry if install the material on ceiling make no much difference since the heat from the side wall is not taken care of

So what caused his power bill to drop?

Which one is better, central unit water tank boiler or individual water heater? I mean in terms of saving electricity & money. I have 3 bathrooms that are just next to eah other, and I am wondering which type to install to save energy.

You got a good deal!!