backtop


Print 116 comment(s) - last by linuxisbest.. on Mar 26 at 10:49 PM


n:vision 23W (100W equivalent) compact fluorescent
New bill would mandate that light bulbs produce 120 lumens per watt by 2020

It looks as though energy efficiency is still a big priority for municipalities and countries across the globe. We've already detailed energy-efficient LED lighting efforts put forth by Raleigh, NC. We've also discussed how Australia and the European Union (EU) plan to get rid of incandescent light bulbs by 2009. The United States is also moving towards ushering out inefficient lighting with H.R. 1547, which was published on March 15, 2007.

The bill (PDF), which was submitted by California representative Jane Harman, indicates that light bulbs which have an overall luminous efficacy of 60 lumens per watt (lm/W) will be prohibited by January 1, 2012. The energy requirements get progressively steeper every four years. On January 1, 2016, the requirement will grow to 90 lm/W and will reach 120 lm/W by 2020.

A traditional 100W tungsten incandescent light has an overall luminous efficacy of 17.5 lm/W. A 23W compact fluorescent (100W equivalent) has an overall luminous efficacy of 60 lm/W.

Exemptions could be made by the Secretary of Energy for certain applications where it wouldn't be feasible to use energy-efficient lighting. These include applications related to military, medical or matters of public safety.

If an exception is made by the Secretary of Energy, that still doesn't give entitle the recipient to a free pass to continue using outdated technology. The exemption will only be in effect for two years after which the current enacted requirement will have to be adhered to.

The bill also notes that consumers and businesses will be given incentives to encourage the use of energy efficient light bulbs.



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: Dimmable
By dgingeri on 3/22/2007 12:31:28 PM , Rating: 2
LED lighting is that efficient on it's own, but once the transformer and rectifier are figured in, they become less efficient than compact fluorescent bulbs, so that's not really a decent replacement.


RE: Dimmable
By saratoga on 3/22/2007 7:19:57 PM , Rating: 2
Do you really need a rectifier for an LED? Why not just drive it off AC?


RE: Dimmable
By highlandsun on 3/23/2007 12:02:57 AM , Rating: 2
LEDs burn out pretty rapidly when run with reverse voltage, unlike regular diodes. You have to feed them DC, with the correct polarity, otherwise they die.


"This is about the Internet.  Everything on the Internet is encrypted. This is not a BlackBerry-only issue. If they can't deal with the Internet, they should shut it off." -- RIM co-CEO Michael Lazaridis














botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki