Lighting, Light Fixtures, Ceiling and Exhaust Fans - Billboard lighting costs

Does anyone have an idea as to the cost of lighting a biilboard for 7 hours each day using 2 400 watt halogen bulbs? thanks!

7 hours x 800 watts = 5.6kwh per day
Mutliply time number of days and your electrical rated
eg 30 day month at $0.10 per KwH
5.6x30x.1 = $1.68 per month plus any connection fees and minimums your POCO has.

Slipped decimal point. $16.80.

John Nelson got the figures right and also let me add this comment here with 400 watt quatz most of them useally are rated for 2,000~ 3500 hours so you will get about ave 2~3 months before it will burn out.

if this is a perment mounted?

i will suggest a small HID even powerful CFL floodlight they last much longer and save even more electric useage.

Merci, Marc

years ago, a restaurant, near simcoe had the same problem, pitch dark at night so he had tons of lights tolet the drivers know he was there.

I was asked to design ANYHING that could cut his hydro costs.

Hmmm ...3-M makes these reflective signage, used on highways, so you can read them, when your car head lights hit them. now the same reflective technology is being used (tiny glass spheres) to light up the lines on highways.

I had his sign letters made from this 3-M adhesive beeded 'mac-tac', put ONE flood light, hidden behind a shrub, and directed to the 'now luminiscent' signage. Black background, White letters, 100 watts a flood lamp ... problem solved ... the signage letters ... 'glowed in the dark', or used high efficiency LED's ... but thats too expensive.