T8s give off about 100 lumens per watt. Really good LEDS may be 120 or 140.
So yes they are a bit better but it is not enormous. Perhaps 30% savings at
most. But never having to change a bulb again is a fantastic reason for
doing this.
I don't buy the reduction in heat load too much. If you have two bulbs
putting out 100 lumens per watt, you are giving off the same amount of heat
either way. Again a modest reduction but not a big reason for spending the
money, just a bit of gravy.
-----Original Message-----
From: Bill Prince
Sent: Tuesday, October 11, 2016 11:38 AM
To: [email protected]
Subject: Re: [AFMUG] OT Office Lighting Change to LED
I can't tell you specifics, but we have a friend that converted a
hardware store from fluorescent to LED. it was part of a remodel, so I
think he did a wholesale replacement without having to retrofit any
fixtures.
He has claimed that it is an enormous amount of power savings (he owns a
total of 5 hardware stores), as he is comparing power consumption at
this one new store relative to his other stores. One bonus that he
didn't originally factor into the comparison is the change in the heat
load. Because the LEDs are contributing fewer BTUs to the ambient
environment, he is also saving on air conditioning.
bp
<part15sbs{at}gmail{dot}com>
On 10/11/2016 10:30 AM, Sterling Jacobson wrote:
Anyone ever replaced their standard fluorescence ceiling lights with LEDs?
I haven't researched it much yet, but someone told me you can't just use a
drop in long bulb replacement.
You have to change out the center piece, forgot what that's called.
Is that correct?
Is this something I can do myself? Or do I need to hire a company?
My system has about 24 bays with three bulbs each drawing about 1500W when
they are all working.
Do I save much by going LED on these? What's ROI?
