Have you ever heard of a factor called the Luminaire Efficacy Rating, or LER? Luminaire Efficacy Rating is exactly what it sounds like – it is a measure of how efficient a luminaire is, which basically means "how much light does it put out based on how much energy it consumes?" Imagine it as "miles [...]
Read More Ballast Factor, EFF, LER, Luminaire Efficacy Rating, Luminaire Efficiency, luminous flux, NEMA, reference ballast, TLL, Total Lamp LumensWell, excellent. </sarcasm> The NEMA index is at a new low – a 4.3% drop over the terrible numbers from last quarter. Hey, the awesome banker behavior that's apparently still going on doesn't affect absolutely everyone, does it? From a press release at the National Lighting Bureau: Silver Spring, MD: The National Lighting Bureau (NLB) [...]
Read More 2009, National Lighting Bureau, NEMA, NEMA Lighting Index, NLB, Q2Well, there's certainly gotta be better news on the horizon, right? Homebuilding is at its lowest point in record, foreclosures are at a high point, and now incandescent lamp sales are up because they're cheaper than buying compact fluorescent lamps. What the hell is going on here? A news story over at The Light Board [...]
Read More NEMA, NEMA Lighting Index, NLB, Q4 2008At LDI this year, I heard a lot of talk about IP ratings and IP code, with such numbers being thrown around as "IP 65" and "oh, that fixture's awesome, it's got an IP 68 rating." Do you know what that means? Do you know how to interpret IP Code? A fixture's IP (International Protection) [...]
Read More IP Code, IP rating, NEMA, standards