[NA]Office lighting[NA]

[Let'sgoflying!]

Was not the 4-bulb recessed fluorescent fixture with T-12 bulb the standard at one point? Recently even?

I am having a hard time locating these, even used ones - to supplement what we now have. (eyes getting old)

Maybe there is a lighting efficiency expert here that will tell me how much I can save by switching to T-8 fixtures. I have probably 75 of these in 4000sq feet.

 

[TangoWhiskey]

http://www.unvlt.com/nema_retrofit.html

Going from T12 to T8:

Power consumption: 52 Watt savings (35% reduction)
Light Level: Increase by 3% to 12% depending on lamp used

That site estimates about $30/yr/fixture savings in energy costs.

 

[Let'sgoflying!]

depending on upgrade cost, sounds doable. Thanks Troy.

 

[SCCutler]

Dave:

120, 240 or 277 VAC?

Also, are these 2' x 4' drop-ins?

 

[Let'sgoflying!]

2x4, 120v flush mount with the drop ceiling tiles havent examined install closely

 

[Bluebird]

Going to T-8's will save money but figure a new ballast into the cost. New electronic ballast can control (power) all 4 lamps. You may find some lamps at Home Depot for the old T-12's.

 

[SCCutler]

Too bad - 277s are easy to get, pretty much free.

I think that, by the time you re-ballast 'em, costs as much as buying new. Let me check in the morning.