
Once upon a time, joking about ‘how many it takes to screw in a light bulb’ was a great way to poke fun at people’s intelligence. After all, what could be easier than screwing in a light bulb? Any idiot could do it. Not so any more. Lighting has exploded into a sophisticated business. And for those who manage commercial buildings it can be downright intimidating. Figuring out the difference betwe…
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