Lumen's

[GreenNeedle]

To add to what George says. the electronic ballast WILL make tubes last much longer before they drop off. It starts the light much more efficiently so where on a magnetic ballast a tube may need replacing after 1-2 years on a magnetic ballast it may last 3+ years before it drops off.

 

[flaviu.vlaicu]

Someone told me that the electronic ballasts give 40% less power than the magnetic ones resulting in less light intensity that the tubes give.Is this true ?

 

[GreenNeedle]

In short...........
............that someone (to be polite ) may have gotten a little confused

They are missing the real point here. Remember watts = power, lumens = brightness. Neither = light.

What we are after is light.

What may have confused 'someone' is that the electronic ballast USES less power. If anything the electronic ballast may GIVE more power because the output should have less fluctuation where the magnetic may move up and down a bit more.

So we don't particularly care how much power, or lumens it is. We want to know how much actual light comes out the other end. If we can use less power and get brightness too then all the better. So we use more efficient sources, a K rating that seems bright to us whilst trying to ensure that the output is sufficient for our needs

AC

 

[flaviu.vlaicu]

I understand.thank you