Do mercury emissions due to light bulb use and disposal pose a risk to the environment? This saving in mercury emissions exceeds the amount of mercury they contain and that they could potentially release if broken or inadequately disposed of.
Where Compact Fluorescents are NOT Recommended Compact fluorescents are not good for places that spend little time being illuminated and places that are only illuminated for brief periods of time. If a place is only illuminated a few hours per month or less, then there are better investments than compact fluorescent lamps.
If a place is illuminated only about a couple minutes or less at a time, then compact fluorescents will not adequately outlive incandescents since starting causes extra wear on fluorescents.
Also beware that halogen lamps are also not recommended where they will usually not be given a chance to warm up, since a hot bulb is required for the halogen to keep the bulb or inner capsule that some have from blackening.
In addition, compact fluorescents often do not do well in places where the temperature varies a lot.
Where high temperature variation or consistent moderately cold temperature is expected, outdoor models are recommended. Restrooms used mainly for short trips However, 4-foot or 32 watt or 34 watt or 40 watt linear fluorescents are more economical than an equivalent amount of incandescent lighting since 4-foot linear fluorescents are cheap.
Refrigerators other than high traffic walk-in ones or walk-ins with lights that are kept on during the workday. Closets, unless you spend at least a few hours a week in one.
I also do not recommend compact fluorescents for use with Radio Shack's "Plug-N-Power" system, since the "trickle" of current used to sense lack of continuity will cause most compact fluorescents to blink or glow dimly. Such "use" may cause extra wear in starters for kinds that have starters or wear out the electrodes in electronic-ballasted types since the electrodes would operate in "glow mode" which is rough on them.
Compact fluorescents for outdoor use, porch lights, post lights, etc. Without an enclosure around it, it works reasonably well in windchills down to about freezing. In an enclosure, it works reasonably well in even colder conditions. This one does require a few minutes to warm up.
In colder temperatures, it can start off-color pinkish red as well as be dim at first. When fully warmed up, its light output is near or slightly above that of a 60 watt standard incandescent. There is a more compact 15 watt version.
The 15 watt ones come in "regular color" K and "daylight" K. The K ones have a spectrum more favorable to night vision than the K ones have, and may have "nighttime outdoor illuminating power" like that of 75 watt standard incandescents.
In general, compact fluorescent lamps that have outer bulbs over the tubing tend to do better with wider temperature ranges, especially colder conditions.
These have a spectrum favorable for seeing in dimmer conditions, such as outdoors at night. One brand that I mostly dislike appears to me to do well for compact fluorescent yard lights and "security lights": There are 27 watt, 65 watt, 85 watt and watt units. Light output is good, although I believe it is exaggerated.
Light output claims on the package may involve "brightness lumens" as opposed to real "photometric" lumens. This is based on these lamps having a "daylight" color that is more favorable to scotopic vision "night vision" than warmer color light is. The 27 watt units have "nighttime outdoor illumination power" my words comparable to or slightly exceeding that of a watt "standard" incandescent lamp.
The 65 watt one is comparable to or may slightly outperform a watt halogen in "nighttime outdoor illumination power".
Where to get these: The 27 watt units are probably better for low-level illumination of warehouses, large buildings, etc.
The "floodlight" style 65 watt units can be aimed for better use of the light. Lights of America bulbs for these fixtures are of a proprietary style.
Should production be discontinued, there may be no other manufacturers of replacement bulbs. Compact fluorescents for table lamps and floor lamps This is easier, since the bulbs will generally be operated base-down in free air indoors, so screw-in bulbs should not have their ballasts overheat.
A common consideration is desire for high light output. The variety and availability of spiral compact fluorescent lamps is increasing!
Most home centers now sell spiral models of wattage watts which are slightly brighter than "standard" hour-rated-life watt incandescents.
This is a "halogen-like" "whitish shade of incandescent", or "whitish shade of warm white".
I find K very pleasant, more white than usual but still "warm". Watch for Sylvania K CFLs being referred to as "Daylight" - which is normally used for icy-cold to bluish shades of white, K. CFLs of watt wattage are now commonly available in home centers and at least some True Value hardware stores.
These are roughly equivalent to W incandescent.What Compact Fluorescents To Use Where And Where Compact Fluorescents Are Not Recommended My favorite compact fluorescent lamp for outdoor use and use in cold areas is the Philips SL/O "outdoor" 18 watt one. Without an enclosure around it, it works reasonably well in windchills down to about freezing.
reusable snap-on reflectors of the. Different from other CFL bulbs, the plastic ballast on this compact fluorescent bulb can be detached from the glass spiral light tube when the tube burns out and reused again with a new tube. Typical, CFL ballasts can last five times or over 50, hours longer than the spiral glass tube.
These three systems were then subjected to the irradiation process in 20 mL ultra-pure water using a W compact fluorescent lamp with a UV leakage of W m − 2 and aeration flow rate of 25 mL min − 1 for 4 h for each system. CFL bulbs (compact fluorescents), are smaller versions of fluorescent lights made into a variety of shape and sizes.
CFL light bulbs use less energy than incandescents while emitting a . Compact fluorescent light bulbs pose a bigger threat to health and the environment than previously thought, say officials and activists, who warn that the bulbs’ mercury-laced contents can be.
Go Green Tips Turn off the tap while you brush your teeth ‐ You’ll conserve up to 5 gallons of water per day. Buy locally ‐ It is good for the local economy and it will save energy because products haven’t traveled across the globe to get to you.
Bring your own reusable water bottle filled with filtered water when you go to.