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Joined: May 2004
Posts: 16
T
Text Offline OP
Junior Member
How much is the standard ballast loss for High Intensity Discharge(HID) Lamps?

Joined: Dec 2004
Posts: 354
K
Member
G'day Text. I think the wattage rating of ballasts include the power loss.

If you want to know the actual power loss of a ballast then the manufacturer should be able to provide that.

I would assume that:

Power loss = ballast wattage - lamp wattage.

Joined: Jul 2002
Posts: 8,412
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Text,
It really depends upon which type of HID lighting system you are talking about.
As you go up through the HID Index as in:
Sodium> Mercury Vapour>Metal Halide.
The losses get reduced, but it is at the cost of higher strike voltages.
Personally, if you were going for lowest loss as far as ballasts were concerned, look at the new T5 Fluorescent tubes, they use High Frequency Ballasts and they also are taking on High Bay Metal-Halide and Mercury Vapour in terms of Light Quality and Energy Efficiency. [Linked Image]

Joined: May 2004
Posts: 16
T
Text Offline OP
Junior Member
is there already available dimmer for HID?

Joined: Jul 2002
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I can't say I've ever heard of someone actually dimming an HID lamp, I'm not even sure if it would be possible.


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