Home |
Search |
Today's Posts |
|
Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
|
#1
|
|||
|
|||
Fluorescent bulbs
I have a fluorescent bulb in a torchiere in my office. Over time it
seems to get dimmer which I don't like. I feel like buying another one but that seems like a huge waste of money. Do they normally dim over time? Bonnie in NJ |
#2
|
|||
|
|||
You are quite correct, all fluorescent lamps are rated in "initial lumens"
as over time they diminish "Bonnie Jean" wrote in message ... I have a fluorescent bulb in a torchiere in my office. Over time it seems to get dimmer which I don't like. I feel like buying another one but that seems like a huge waste of money. Do they normally dim over time? Bonnie in NJ |
#3
|
|||
|
|||
Bonnie Jean wrote:
I have a fluorescent bulb in a torchiere in my office. Over time it seems to get dimmer which I don't like. I feel like buying another one but that seems like a huge waste of money. Do they normally dim over time? Bonnie in NJ Yes. Talking to a supermarket manager on saturday, he commented that all bulbs in the stores are replaced every two years and it made a big difference. Lou |
#4
|
|||
|
|||
Greetings,
I know they get dimmer but what I don't know is if they become significantly less efficient. Do they use less energy as they dim, etc, etc? Does anyone else here know? I don't mind using more dim florescent bulbs to extend bulb life so long as I am not paying extra for the energy. Thanks, William |
#5
|
|||
|
|||
" wrote in message ups.com... Greetings, I know they get dimmer but what I don't know is if they become significantly less efficient. Do they use less energy as they dim, etc, etc? Does anyone else here know? I don't mind using more dim florescent bulbs to extend bulb life so long as I am not paying extra for the energy. Thanks, William This is only logical thinking, not sure knowledge, but, since a flourescent requires a certain voltage from its xfmr to burst into light, I'd say all they've done is lower the required current to stop them from glowing, in order to allow dimming them. But I'm not sure of that, so ... I'm sure Google would turn up plenty of info, including design infom HTH Pop |
#6
|
|||
|
|||
This is only logical thinking, not sure knowledge, but, since a flourescent requires a certain voltage from its xfmr to burst into light, I'd say all they've done is lower the required current to stop them from glowing, in order to allow dimming them. But I'm not sure of that, so ... I'm sure Google would turn up plenty of info, including design infom Some of the dimming occurs because of mecury staining within the tube, thus, the UV transmission and conversion to visible light process does degrade over time. This would affect the efficiency of the tube (less light per watt = less efficiency). Electrode efficiency over time also is degraded. Beachcomber |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Can I Mix 40 Watts and 25 Watts Light Bulbs in One Fixture? | Home Repair | |||
compact fluorescent bulbs | Home Repair | |||
installing fluorescent light bulbs | Home Ownership | |||
What's in a Fluorescent Ballast?? (magnetic, instant start, single pin/duplex bulbs) | Metalworking | |||
Fluorescent 'bulbs'? | Home Repair |