To suck money out of you.

LOL those who said dc ceiling fan useless must be never use inverter aircond before.

its 50% more efficient than AC, if ur house got 6 DC fan, u only pay like 3 AC fan.

example 40w * 6 = 240w. (this is highest speed for DC fan, produce 23X rpm).

the rest u calculate la, u use fan everyday, atleast 12 hours, if all eq in ur house is inverter, say example 3* 1hp inverter aircond, 1* 1.5hp inverter, 1 inverter fridge, 1 inverter washing machine, 2 inverter water heater, and 6 dc fan,


and use 5 fans, 4 aircond everyday for 8 hours, ur bill will only cost around rm250 - 300. I use all above except the dc fan, bill around rm250.

surely will use dc fan later for my new house

also i compared the dc fan,

KDK is better than Panasonic in terms spec.

https://www.kdk.com.my/wp-content/uploads/2.../NikkoSensa.pdf

vs

https://www.panasonic.com/my/consumer/air-s...eiling-fan.html

You dont need inverter for fan because the speed of fan is always the same, unlike compressor aircon, you may gain some benefit from inverter by better control.of its compressor

This post has been edited by lopera199: May 19 2020, 08:55 AM

oh yeah, BTW some DC fan got LIFETIME warranty for motor, and atleast 10 YEARS for motor for most brands. so those who skeptical about inverter technology can use ur AC and pay TNB for their yearly bonus.

u know inverter not that 1 concept only?? have u ever heard inverter oven? inverter washing machine? its proven to use less 50% energy and 5 star rating is very hard to obtain with old technology.

From what I understand from invertor is that if your equipments have electrical motors, compressors, you want precise control of that motors, than you use inverters, you gain efficiency, but not much so for a application that only required fixed speed

This post has been edited by lopera199: May 19 2020, 09:08 AM

check out this model
Alpha Vanus
cheaper DC fans, got 3 blades and 5 blades one

look at the starsss

checked it not as efficient as KDK/Panasonic, abit low rpm and lesser speed control, only cheaper around rm100, Reliability also is unknown compared to KDK and Panasonic.

Ceiling fan no need inverter lah. Already power savings as it is.

Ceiling fan is an old tech.
You don't need inverter for that.

I buy jer 5 blades PANASONIC Yuragi... Hnnnggghhhh..

No. of blades higher, itu yang paling penting for a fan

This post has been edited by rickyro: May 19 2020, 09:39 AM

but look much nicer
KDK/Pana so apek looking

I think the inverter term is used without knowing what it is actually meant.

The inverter in electronics means the DC voltage is inverted into AC voltage. From AC to DC it is called convert. So, the opposite of convert is invert.

In case of DC fan, it is just fan that use DC motor. Some ads get people confused with inverter. It is not an inverter fan but just DC fan

Like you said, it is just AC to DC. However, if it is just direct AC motor with no conversion, it should be more efficient ; but it is not due to to nature on how AC motor works.

The AC motor is works efficiently at its designed natural speed which I would say should be more efficient than DC motor, but when the AC fan speed is regulated to operate at various other speed, the efficiency drops thus makes it less efficient. Basically, the speed of an AC motor is dependent on the number of poles it has and the line frequency of the power supply, not on it’s voltage. The pole is created by AC current flowing in another set of coil winding. Since pole number is fixed in AC motor, the frequenct change is used to vary speed. That is why normally when ceiling fan is faulty, spoiled capacitor is normally the main suspect. Fan motor cannot turn

Unlike AC motor, the DC fan is using permanent magnet to create pole. The motor the speed it regulated by controlling how much current flow through motor winding. This is why the control is precise and waste less energy.

There is no inverter involved here. The inverter is different thing. The inverter technology is used to control AC motor through PWM (Pulse Width Modulation). That is another story. This will make AC motor more efficient by being able to regulate power as required.

My fan use fiber blade. No rust.

The humming sound usually because the slip capacitor is degraded already. I think replacing it can solve the problem. Something less than RM10.

This.

wth needs inverter for fan...adui.

Next you will need inverter for TV, your rice cooker and your semakphone.

Depends on size of room. If small room, less blades better. 3 is sufficient. Fans installer expert told me wan. Small room with too many blades caused wind feedback and more instability on the swing, making noise and unstableness.

If Living room, probably 5 blades is OK.

i cant brain this maths

Nowadays marketing team likes to hentam the words that able to grab consumer's attention...

Next ceiling fan definitely fiber blade... tired of cleaning those rusty blades...