Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 08-09-2011, 11:13 PM   #1
Learning by Doing
 
Leah Frances's Avatar
 
Join Date: Jan 2008
Location: Easton, Maryland
Posts: 3,156
Rewards Points: 2,000
Blog Entries: 7
Default

LED light bulbs = WOW! actually no bugs


DH and I took a trip to the Costco on Monday for our annual stock-up of tax free essentials (toilet paper, q-tips, dog food). As per usual, more than a few 'impulse' items made it into our cart(s)

Including two LED floodlights. I've read about the so-called bug-free lights with some skepticism I popped one into my side porch ceiling light which normally stays off all the time to keep the night bugs to a minimum. Lo and behold, there is a considerable difference in the number of bugs. I'd say at least a 90% reduction, if not more. A remarkable difference.

Also, I replaced a flood light in a recessed can and even at the 'warm' end of the range (3000K) it produces a beautiful amazingly bright white light. Compared to my CFLs - there is no comparison. It's actually amazing how much better my counter looks under the LED light.

Seriously, folks. I'm a total skeptic and not an early adopter by habit. But, I am completely impressed. I'll try and take some pics that show the difference.

__________________
If I could only remember to THINK about what I was doing before I did it.
Leah Frances is offline   Reply With Quote
The Following User Says Thank You to Leah Frances For This Useful Post:
gregzoll (08-10-2011)
Old 08-09-2011, 11:22 PM   #2
Lic Electrical Inspector
 
electures's Avatar
 
Join Date: Dec 2009
Location: The Great Police State of New Jersey
Posts: 1,731
Rewards Points: 1,068
Default

LED light bulbs = WOW! actually no bugs


Cool!

__________________
All responses based on the 2011 NEC.
If you live in New Jersey click here. All other states click here.
Please check with local, county and state officials as laws may vary.
Sizing motors here. Online motor calculator here. Online calculators here.
electures is offline   Reply With Quote
Old 08-10-2011, 12:43 AM   #3
Idiot Emeritus
 
Join Date: Mar 2008
Location: Fernley, Nevada (near Reno)
Posts: 1,625
Rewards Points: 1,044
Default

LED light bulbs = WOW! actually no bugs


Are they dimmable?

I've replaced a BUNCH of streetlights with LEDs recently. They look a bit brighter than the metal halide ones, and they don't throw the light quite as far. But in the end, you'll hardly notice.

Every traffic light I've installed or upgraded in the last couple of years is LED too. The energy consumption of these lights is way lower than the incandescent ones. Low enough that a lot of the control cabinets now have a UPS. If the power goes off, the lights keep working, just like normal.
micromind is offline   Reply With Quote
Old 08-10-2011, 04:25 AM   #4
Learning by Doing
 
Leah Frances's Avatar
 
Join Date: Jan 2008
Location: Easton, Maryland
Posts: 3,156
Rewards Points: 2,000
Blog Entries: 7
Default

LED light bulbs = WOW! actually no bugs


Quote:
Originally Posted by micromind View Post
Are they dimmable?

I've replaced a BUNCH of streetlights with LEDs recently. They look a bit brighter than the metal halide ones, and they don't throw the light quite as far. But in the end, you'll hardly notice.

Every traffic light I've installed or upgraded in the last couple of years is LED too. The energy consumption of these lights is way lower than the incandescent ones. Low enough that a lot of the control cabinets now have a UPS. If the power goes off, the lights keep working, just like normal.
they are dimmable. The only part of it that kills me is that I KNOW they are going to get cheaper over the next few years - but now I WANT.

Car break lights shifted to LEDs because of they are faster to light up than incandescent bulbs - and at highway speeds that little increase in light up speed equates to greater breaking distance.
__________________
If I could only remember to THINK about what I was doing before I did it.
Leah Frances is offline   Reply With Quote
Old 08-10-2011, 10:19 AM   #5
Member
 
Join Date: Apr 2011
Location: Saskatoon, SK
Posts: 73
Rewards Points: 75
Default

LED light bulbs = WOW! actually no bugs


Are you saying that humans can perceive a difference of start up times between led and incandescent and that's the reason auto makers have put them in tail lights? I kind of doubt that, but if you have a reference I'd like to take a look at it.
I also have bought some dimmable led lights recently and I think they're great, I agree with you on that.
readar is offline   Reply With Quote
Old 08-10-2011, 11:00 AM   #6
Retired from the grind
 
gregzoll's Avatar
 
Join Date: Dec 2006
Location: Midwest - Central Illinois
Posts: 14,337
Rewards Points: 2,336
Default

LED light bulbs = WOW! actually no bugs


Mythbusters did a show on the energy use of the different types of bulbs.

http://kwc.org/mythbusters/2006/12/e..._fall_lig.html

For steady state energy consumption, they turned on several different types of bulbs for 60 minutes and measured their consumption using a Kill A Watt: * Incandescent 90 Wh * Compact Fluorescent (CFL): 10 Wh * Halogen: 70 Wh * Metal halide 60 Wh * LED: 1 Wh * Fluorescent: 10 Wh
gregzoll is offline   Reply With Quote
Old 08-10-2011, 11:05 AM   #7
Learning by Doing
 
Leah Frances's Avatar
 
Join Date: Jan 2008
Location: Easton, Maryland
Posts: 3,156
Rewards Points: 2,000
Blog Entries: 7
Default

LED light bulbs = WOW! actually no bugs


Quote:
Originally Posted by readar View Post
Are you saying that humans can perceive a difference of start up times between led and incandescent and that's the reason auto makers have put them in tail lights? I kind of doubt that, but if you have a reference I'd like to take a look at it.
I also have bought some dimmable led lights recently and I think they're great, I agree with you on that.
Your doubt is unfounded. At 65mph a 200ms faster breaking response time from the driver in a passenger vehicle results in 19 extra feet. This is ALL (AND MORE THAN) the distance required for life or death.

You shouldn't doubt physics: Good review paper from Beloit College in collaboration with HP that shows the data for reaction time and LED brake lights
__________________
If I could only remember to THINK about what I was doing before I did it.
Leah Frances is offline   Reply With Quote
Old 08-10-2011, 11:50 AM   #8
Member
 
Join Date: Apr 2011
Location: Saskatoon, SK
Posts: 73
Rewards Points: 75
Default

LED light bulbs = WOW! actually no bugs


You showed me! I'm impressed by this stat "Just 0.5 seconds [500 ms] in early warning would reduce rear-end collisions by 60%"
Sounds like they need to do more work on early warning systems.
Thanks for the info.
readar is offline   Reply With Quote
Old 08-10-2011, 12:42 PM   #9
Learning by Doing
 
Leah Frances's Avatar
 
Join Date: Jan 2008
Location: Easton, Maryland
Posts: 3,156
Rewards Points: 2,000
Blog Entries: 7
Default

LED light bulbs = WOW! actually no bugs


Quote:
Originally Posted by readar View Post
You showed me! I'm impressed by this stat "Just 0.5 seconds [500 ms] in early warning would reduce rear-end collisions by 60%"
Sounds like they need to do more work on early warning systems.
Thanks for the info.
The bottom line is that you cover a lot of feet per ms at 65mph - you should NEVER tailgate. Most drivers are following someone too closely to possibly stop in time to avoid hitting them.
__________________
If I could only remember to THINK about what I was doing before I did it.
Leah Frances is offline   Reply With Quote
Old 08-10-2011, 04:27 PM   #10
Member
 
Join Date: Jan 2010
Location: Pennsylvania
Posts: 594
Rewards Points: 500
Default

LED light bulbs = WOW! actually no bugs


LEDs need to drop in price about 50% before I'm in.
operagost is offline   Reply With Quote
Old 08-10-2011, 04:53 PM   #11
Learning by Doing
 
Leah Frances's Avatar
 
Join Date: Jan 2008
Location: Easton, Maryland
Posts: 3,156
Rewards Points: 2,000
Blog Entries: 7
Default

LED light bulbs = WOW! actually no bugs


Quote:
Originally Posted by operagost
LEDs need to drop in price about 50% before I'm in.
For sure. I'm not upgrading every bulb in the house. But I am going to do my outdoor lights where bugs are a nuisance.

I'm just impressed that it's not just hype.
__________________
If I could only remember to THINK about what I was doing before I did it.
Leah Frances is offline   Reply With Quote
Old 08-10-2011, 06:24 PM   #12
Member
 
Join Date: Oct 2010
Location: Cairns Australia
Posts: 2,659
Rewards Points: 2,278
Default

LED light bulbs = WOW! actually no bugs


Quote:
Originally Posted by readar View Post
You showed me! I'm impressed by this stat "Just 0.5 seconds [500 ms] in early warning would reduce rear-end collisions by 60%"
Sounds like they need to do more work on early warning systems.
Thanks for the info.
I think most accidents are caused by lack of response from the human,
rather then lack of response from the lights.

I doubt the stated statistic,
Like most research it is usually used out of context
or wrongly by some one looking to give credibility to some
issue they are pushing.

I do agree that it would improve the speed of response,
But by 60%,
I doubt that.
dmxtothemax is online now   Reply With Quote
Old 08-10-2011, 07:24 PM   #13
Learning by Doing
 
Leah Frances's Avatar
 
Join Date: Jan 2008
Location: Easton, Maryland
Posts: 3,156
Rewards Points: 2,000
Blog Entries: 7
Default

LED light bulbs = WOW! actually no bugs


Quote:
Originally Posted by dmxtothemax View Post
I think most accidents are caused by lack of response from the human,
rather then lack of response from the lights.

I doubt the stated statistic,
Like most research it is usually used out of context
or wrongly by some one looking to give credibility to some
issue they are pushing.

I do agree that it would improve the speed of response,
But by 60%,
I doubt that.
DMX- You are sort of right. It IS the reaction time that matters, but with brighter initial light up and faster light up time people have MORE time to react.

Don't take my word for it. Read the paper, do the math yourself. Just 'cause you 'doubt' it doesn't mean it isn't true.

The math and physics are there. Being a skeptic in the face of GOOD solid evidence that is generated using the scientific method is just silly. It's not like this is the only academic paper out there about it....
__________________
If I could only remember to THINK about what I was doing before I did it.
Leah Frances is offline   Reply With Quote
Old 08-11-2011, 12:00 AM   #14
Idiot Emeritus
 
Join Date: Mar 2008
Location: Fernley, Nevada (near Reno)
Posts: 1,625
Rewards Points: 1,044
Default

LED light bulbs = WOW! actually no bugs


Quote:
Originally Posted by Leah Frances View Post
Car break lights shifted to LEDs because of they are faster to light up than incandescent bulbs - and at highway speeds that little increase in light up speed equates to greater breaking distance.
It's funny; when we were doing LED retrofits to traffic lights, sometimes we could do only one set of lights on a pole. So there were one set incandescent, and one set LED on the same mast arm. These were both fed by the same wire; a simple parallel circuit.

When the lights would change, it was very obvious which one was the LED and which was the incandescent. The incandescent was noticeable slower than the LED. Really noticeable.
micromind is offline   Reply With Quote
Old 08-11-2011, 08:16 AM   #15
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,968
Rewards Points: 2,032
Default

LED light bulbs = WOW! actually no bugs


Many yellow lights actually have a lot of green content which can attract more bugs than almost "pure" yellow light wavelengths such as from a low pressure sodium lamp. The difference might not be immediately visible although after you get used to it you notice that under pure yellow light (if you have an LPS fixture) red and green objects appear much darker.

In the early days of LED traffic lights I have often seen LED red and green and the old incandescent yellow remained in place, awaiting budgeting.

I am not sure whether, during a power failure, the system imposed a minimum main street green of perhaps 30 to 45 seconds (sacrificing intersection efficiency although only noticeable during light traffic) so the yellows did not get used as often and a UPS would run longer.

LEDs are not completely heat free. LED general purpose (and also traffic signal) lighting units have large metal parts to act as heat sinks.

__________________
Forget super sized fries. The Washington Redskins could promote healthy eating with First Lady Obama by choosing a (red skinned) turnip for a mascot.

Last edited by AllanJ; 08-11-2011 at 08:29 AM.
AllanJ is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
replacing fluorescent tube light with regular bulbs nikeman Electrical 7 08-07-2011 09:33 PM
My house eats light bulbs oatlord Electrical 10 06-29-2011 02:30 PM
Ceiling fan light kit duhtroll Electrical 10 06-21-2011 03:29 PM
Ceiling Fan Light Bulbs? kennykenny Electrical 7 07-29-2008 08:16 AM
clear light bulbs versus white ugabulldog Electrical 5 04-19-2008 11:42 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.