STRAIGHT TALK ON CURLY LAMPS As a person with over 30 years experience in the commercial lighting industry I have learned a lot about the "curly" lamps, and most other energy saving lamps. With the economy the way it is right now I see a lot of people that want to convert the whole house to CFL lamps for the energy saving aspects (lower electric bills), but just can't afford, or justify the expense of buying all those CFL's at once. My advice is always the same weather it is a residential or commercial customer – lets just change the lights that will give you the most bang for your buck. As a general rule most fluorescent lamps do not like to be turned on and off many times a day, and when they are turned on they like to stay on for a while. They also don't like overly hot and humid places, like over the oven or in really steamy bathrooms. They also don't like really cold places, like outside when it's below zero, most lamps do have a minimum starting temperature printed right on the box, so if you live someplace really cold you need to pay attention to that if the lamp is going to be exposed to the cold. OK, so now that we know the basics, walk around your house and see what lamps are on all the time, and which ones are not overly exposed to heat, cold or high humidity. When I do walk-thrus I look for any lights that are left on all night long (like hallway lights, bathroom lights, night lights, etc.), I also look for any lights that are used through-out the day and/or at night (reading lamps, kitchen lamps, any light used for at least 4 hours a day), then I go outside and see what lights are on all night, or most of the night (entry lights, security lights, decorative lighting, but NOT motion sensing lights – they turn on/off to much for a CFL and will greatly shorten the life of the lamp, if you do have motion sensing lights I recommend a low wattage, 65 watt or less, out door incandescent flood lamp). Now you have a list of lights that are excellent candidates for CFL replacement. You have several choices, you can go to the local department store, hardware / home improvement store, or a specialized lighting store. I always recommend using a store you trust and one that has a good knowledge of CFL applications. Look for a name brand CFL or a commercial rated CFL, both should have a long life span and a good warranty. The other major question is what COLOR of light do you want? Most CFL's are available in three colors, 2700K, 3500K and 5000K. The lower the number, the "warmer" the color. 2700K lamps have more red and yellow and are great for accenting wood and earth tones, 3500K is a little whiter or "cooler" and is good at accenting more neutral colors or making things look "whiter" or cleaner, 5000K is very white with a lot of blue – called a "daylight" by most people – it accents whites and blues and appears brighter than the other colors. You may also see a CRI number – that is the Color Rendering Index number of a lamp, the higher the number, the better the color rendering ability of that lamp. For example a CRI 835 lamp has a better color rendering index that a 735 lamp, the first number is the CRI number 7 or 8 in this case, the rest of the number 35 is the color of the lamp, 3500K. So, a lamp with a CRI of 835 is a 3500K lamp with a color rendering index of 8, the highest number on the CRI index is 10 and that is equal to normal sunlight. Most CFL's have a CRI of 7 or 8. Well, I hope this helped and please feel free to contact me with any questions. Remember to mark all your CFL lamps with the date you installed them with a magic marker or a sharpie so you can keep track of how long they are lasting
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