Replacing 24W Darbuster ballast

Umibuta said:

Help needed. Does anyone know where I can find a replacement for the 24W Darkbuster ballast?

Will any 24W ballast work for HID or is there a particular specifications that I should note before buying. Any advice on how to choose a ballast will also be welcome?

Many thanks.

Click to expand...

350xfire said:

Newpex Enterprises out of California should be able to. Best bet is to open it up and see if there is a part number. Oxycheq also has some 24W ballasts that I guess should work.

Click to expand...

Lucca I think the A7 is attached directly to the bulb, no?

Click to expand...

Does that mean that the only difference between a 21W and 24W HID is actually the bulb alone and the ballast has no effect?

Assuming that I can find a ballast that fits into the Darkbuster, as long as it is 12V DC input and 21-24W output that should work? Or do I need to check other specifications? I noticed that there are some with fast start up and slow start up.

Click to expand...

lucca brassi said:

I haven't work with Darkbusters , but I own have several BS balasts.


Yes it is.



You can use 21W bulb on 24W balast , but not opposite!

( reason is that is HID bulb some very complex capacitive load because of plasm/arc building . With low energy from balast your balast run on upper limit and might overheat if try to hold plasma. If opposite BS are digital balasts which can detect consumption and instantly adjust parameters)

Both bulbs have (21W;24W +/- 3W ) so 22W is common for both and most important ignition and working voltage have same.

I think that difference between 21and 24W is only that 24W has slightly higher percent of metal halide wapours that's why more luminiscence.

Click to expand...