# First HMI, ballast has no plug...

### #1

Posted 24 February 2009 - 01:40 PM

I picked up an Arri 2500 Daylight compact HMI and a 2500 CB ballast off of ebay.

it just arrived and the connection to power the ballast is cut off...now i know that the right way to run this light is to power it off of a generator, but if I'm careful, is it possible to run it off of household power? If so, is there a special type of edison plug I should purchase or just the basic heavyy duty connector??

Thanks so much,

Jason

www.eikonic.com

### #2

Posted 24 February 2009 - 05:18 PM

Hi all,

I picked up an Arri 2500 Daylight compact HMI and a 2500 CB ballast off of ebay.

it just arrived and the connection to power the ballast is cut off...now i know that the right way to run this light is to power it off of a generator, but if I'm careful, is it possible to run it off of household power? If so, is there a special type of edison plug I should purchase or just the basic heavyy duty connector??

Thanks so much,

Jason

www.eikonic.com

Conversion from watts to volts or an amp to volt conversion.

It is not really a conversion as such but a formula where any two values are needed to be known to enable the third to be calculated.

I remember the formula as WAV (wave; hi there!) - Watts = Amps x Volts

By dividing both sides of the formula by amps you get - Watts / Amps = Volts

... the amps / amps on the right hand side canceling each other out to leave volts.

and by dividing both sides by volts you get - Watts / Volts = Amps

... the volts / volts on the right hand side canceling each other out to leave amps.

Example:-

q. What is the biggest electric fire that can be run on a 13 amp fused plug in the UK?

a. Mains voltage in the UK is 230v so Watts = 13 x 230 = 2990 watts or just under 3kW

So if your UK based then YES you can run the HMi off a standard 13amp ring main.

### #3

Posted 24 February 2009 - 05:19 PM

Hi all,

I picked up an Arri 2500 Daylight compact HMI and a 2500 CB ballast off of ebay.

it just arrived and the connection to power the ballast is cut off...now i know that the right way to run this light is to power it off of a generator, but if I'm careful, is it possible to run it off of household power? If so, is there a special type of edison plug I should purchase or just the basic heavyy duty connector??

Thanks so much,

Jason

www.eikonic.com

with a 2500 you will need to run it off a 30 amp breaker at least, 50 would be better. The only place you're likely to see that is on a washing machine hookup or an electric range. If your ballast accepts 220, wire it for that and attach a 3 or 4 prong twist plug. Or better yet put a 60amp bates on the ballast, and make a distro cable to connect the dryer hookup to bates. Thats pretty much your only option. a 2500 on a 20amp 120 edison will pop the breaker before it even strikes.

### #4

Posted 24 February 2009 - 05:29 PM

BTW, how much did you puchase this set-up for?

### #5

Posted 25 February 2009 - 10:25 AM

### #6

Posted 26 February 2009 - 01:53 PM

it's still a good deal. head and ballast for $2500.

-Jason

### #7

Posted 27 February 2009 - 07:06 PM