User: Electric-Light, Location: Colorado
Asked on: Friday, June 3, 2011 at 12:17 pm EDT
Answered on: Tuesday, May 14, 2024 at 6:10 am EDT
Question: EISA legislation will outlaw 4' lamps with efficacy below 89lm/W, which means RE70 (GE SP, Philips 7xx, Sylvania 7xx). The RE70 lamps are only a few lumens per watt below RE80 lamps that meet the requirements.So lamp efficacy is one thing, but overall, fixture makes a big difference. There are some corridor type fixture with utilization factor exceeding 95% while some fancier looking ones with efficiency below 60%.Any idea as to why they're not regulating optically inefficient fixtures?
There are a few reasons why EISA legislation does not regulate optically inefficient fixtures. Technical challenges. Measuring the optical efficiency of a fixture is a complex and time-consuming process. It requires specialized equipment and expertise. As a result, it would be difficult to enforce regulations on optical efficiency. Economic impact. Regulating optical efficiency would likely increase the cost of lighting fixtures. This could have a negative impact on businesses and consumers.* Enforcement challenges. It would be difficult to ensure that all lighting fixtures meet the required optical efficiency standards. This would require a significant investment in enforcement resources.For these reasons, EISA legislation focuses on regulating lamp efficacy rather than fixture optical efficiency. Lamp efficacy is a more straightforward measure of lighting efficiency, and it is easier to regulate and enforce. Flag for review