multiple UPS's for lighting power supply? at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > Photon Management

Photon Management
Shine an ever-loving light on you.


Reply
 
Thread Tools Search this Thread
Old December 2nd, 2006, 01:16 AM   #1
Major Player
 
Join Date: Oct 2006
Location: San Diego, California
Posts: 505
multiple UPS's for lighting power supply?

Has anyone tried using computer uninterruptable power supplies (UPS) to power lighting in night shoots/remotes? Clearly they wouldn't last for hours, but it seems to me a workable solution for relatively brief remote shoots.
Greg Quinn is offline   Reply With Quote
Old December 2nd, 2006, 01:21 AM   #2
Inner Circle
 
Join Date: Dec 2003
Location: PERTH. W.A. AUSTRALIA.
Posts: 4,356
The internal batteries may not be suitable for high current draw and deep-cycling.
Bob Hart is offline   Reply With Quote
Old December 2nd, 2006, 02:34 AM   #3
Inner Circle
 
Join Date: Feb 2004
Location: switzerland
Posts: 2,131
ups deliver low power (about 300W) versus what needed for light (usually 500W and over) and at full load it is only few minutes.
and weight is really heavy, and expensive.
you better had to go with a small gazoline generator that can deliver easily 2000 W and for some , almost silently.
or you can go with 12V car lead accumulator and car lights. that is very cheap and efficient. you can probably run 2 or 300W per accumulator for several hours.
Giroud Francois is offline   Reply With Quote
Old December 2nd, 2006, 07:15 AM   #4
Wrangler
 
Join Date: Dec 2002
Location: Mays Landing, NJ
Posts: 11,542
UPS'es almost all have an alarm that goes off as soon as the power drops. Older ones had a switch to disable this, but most of the new ones I've seen do not. They may also have a feature to shut them down automatically if running on battery power with no load attached. They really are intended to do something completely different and won't be a very good choice for what you want.

If you don't have too large of a load to power you might look at something like the Husky jump starter/inverter. Home Depot sells them for about $90. Just tried to link to their site but it doesn't work for some reason... go to homedepot.com and enter "hsk037hd" in the search box for more info.

It has an internal battery and provides both 12 volts DC and 120 volts AC through a 400 watt inverter. Of course it depends on how many lights you have and how long you want to run them. As others have said, battery power may not be sufficient for your needs.
Boyd Ostroff is offline   Reply With Quote
Old December 2nd, 2006, 07:52 AM   #5
Trustee
 
Join Date: Nov 2005
Location: Sydney Australia
Posts: 1,570
You can buy just inverters that run off 12 or 24V batteries. SLA batteries are pretty cheap, we use the Panasonics.
Running inkies off batteries is a bit of a waste of energy, fluros are better or LEDs. Generators are certainly a cheap source of lots of power. Can be noisy and need to be out in the open though.
Bob Grant is offline   Reply With Quote
Old December 2nd, 2006, 02:04 PM   #6
Major Player
 
Join Date: Oct 2006
Location: San Diego, California
Posts: 505
Thanks for the input, all very good points. I suggested UPS's because folks do use them as off-site power supplies (after disconnecting the buzzers), but it sounds like an inverter of generator would be better.
Greg Quinn is offline   Reply With Quote
Old December 2nd, 2006, 03:10 PM   #7
Inner Circle
 
Join Date: Oct 2001
Location: Honolulu, HI
Posts: 2,053
Take a look at the Honda EU series of generators. They're enclosed and have low noise ratings around 59 dB. Panasonic in-room air conditioners, by comparison, have about the same noise ratings.

The 1000-watt generator is very compact and weighs 29 pounds. The 2000-watt generator weighs 46 pounds. They'll run at least a few hours on a tankful of gas at its rated load and several hours at partial load. And a gallon of gas goes a long way.

Check with your local rent-all company. They might have them available. Here in Honolulu the 1000-watt rents for about $35/day. The 2000 goes for $47/day.
__________________
Dean Sensui
Exec Producer, Hawaii Goes Fishing
Dean Sensui is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > Photon Management

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 06:02 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network