Watt Watcher Luminaries

[DanZ]

Have you guys ever used something like this?
Here's the cut sheet.
I'm wondering if they actually look like they produce more light, or if it's just advertised that way. What do you guys think?

 

[highendtron]

Isn't it all about Lumens at a certain height with the CRI in a specific range? Doesn't every manufactured fixture specify a ballast and lamp combination that has to be marked with the efficiency rating, cri, and candlepower or illumination rating? The cut sheet allows a comparison to be made between different fixtures and lamp arrangements.

 

[Ragin Cajun]

Per the cut sheet they are ~86% efficient, not bad. Day Brite is a reputable company, not one of the many "cheap china junk" suppliers.

Personally, I would not simply replace existing 3 lamp fixtures without doing the calculations. I'm olde school.

RC

 

[DanZ]

I wouldn't replace existing 3 lamps with them, other than needing to meet energy code. I'm just looking for something that will meet code and give off more light (or diffuse it better) than a standard prismatic 2x4 troffer.