Electrical – the difference between an electronic and a magnetic ballast

electricallight-fixture

The ballast in my bathroom burned out (brand new bulb won't light up). Looking online, it seems that there are two different types of ballasts: electronic and magnetic.

I recently replaced my kitchen ballast, and the new one was much lighter than the old one. I assume that is because the new ballast is electronic and the old one was magnetic. Other than weight, what is the difference in terms of reliability, longevity, efficiency, etc.?

Best Answer

Reduced Weight

As you've noticed, electronic ballasts are lighter.

Reduced Lamp Flicker

Because the electronic ballast operates at a higher cycle rate, flicker is less noticeable.

Quieter Operation

Again, because of the high cycle rate, hum is reduced.

More Efficient

Magnetic ballasts can have losses between 5-25%, while electronic ballasts have better current control making them more efficient.

No Starters Required

Magnetic ballasts required a starter to get the lamp lit, electronic ballasts do not require a starter.

Higher Price

Electronic ballasts are typically more expensive, though you may find that this is no longer a problem.