150watt fixture

[dr evil]

hi guys,

just dismantle a 2x150watt MH (chine brand) fixture and realise that the set does not have any capacitor.

it had only ballast and ignitor.....very strange....

will it affect anything??? danger??

need advise........

[CalciumReef]

You are diying lights for reefers and you do not know whats a capacitor for???

A capacitor is necessary to set the steady state working frequency by storing up energy. This ensures the reliability of the power supply meaning constant...

[roidan]

yeah....it is like a temporary reserve of electricity...actually they are charged plates...lets say the mains has some tiny fluctuations in supply....the capacitor still would provide the appliance a steady flow of electricity...hehe

dunno lah..but thats what i think...

[dr evil]

You are diying lights for reefers and you do not know whats a capacitor for???

A capacitor is necessary to set the steady state working frequency by storing up energy. This ensures the reliability of the power supply meaning constant...

hi bro,

thats a very nice comment........ thats why reefers approach u to diy their lights rite?

when i diy lights, i will include the capacitor......but for this fixture, its stange that the factory fitiing does not include the capacitor....there should be a theory behide it.

since u are so smart, can u explain why???

[roidan]

only 1 theory behind it my bro...

cut costs...hehe

[Tanggy]

To lower production cost? The capcitor is built into the ballast? The Designer blur fuc@? etc etc... 101 reason, how anyone know? why dont you write in to the manufacturer and ask?

How to answer your question when never seen the actual thing? Is it a standard ballast? electronic one? etc etc....

[CalciumReef]

Dr evil for you info, i only made 2 units so far...Do not presume alot of people are approaching me...I'm giving more of advise rather than making lights for them.

[dr evil]

To lower production cost? The capcitor is built into the ballast? The Designer blur fuc@? etc etc... 101 reason, how anyone know? why dont you write in to the manufacturer and ask?

How to answer your question when never seen the actual thing? Is it a standard ballast? electronic one? etc etc....

hi bro,

this is a china brand MH(dont want to reveal the brand).......and it is using magnetic ballast.....with an ignitor only.

how much can they save cost by not using an capasitor? very strange.....

now i need to get a capasitor myself......

[CalciumReef]

Sometimes suppliers do it on purpose to make their product last till a certain time before they break down.We as consumers will normally go back to them for replacement.

[BarraCudaTM]

The capacitor in this case is a shunt capacitor, its connected parallel to the power source and used for correcting the power factor. Magnetic ballast often have a low powerfactor resulting in greater power consumption due to its inductive nature.

Having a shunt capacitor will greatly reduce the amount of current drawn by the ballast