Many traditional 60W to 100W bulbs around your home can be replaced with spirals, the most popular type of CFL. Some spirals are available for dimmer switches. Spirals also come in a variety of colors like soft white, natural light or daylight.
Indoor reflector CFLs are perfect for providing directional light like recessed lights in kitchens or living rooms. Not to be used with a dimmer or 3-way switch.
This shape is commonly used in bathroom vanity mirrors, open hanging lamps and bare bulb applications. Bathroom vanities usually require multiple bulbs, which generate radiant heat. The CFL globe reduces heat buildup while saving energy. Not to be used with a dimmer or 3–way switch.
A-Lamps combine the efficiency of spiral CFLs with the look and feel of traditional incandescent bulbs. They're perfect for people who prefer a traditional "bulb" look but still want the efficient lighting of CFLs. You can use them wherever you use traditional incandescents. Not to be used with a dimmer or 3–way switch.
For outdoor use, flood CFLs are sealed to withstand the rain and snow. Timers, photocells and motion sensors may not be compatible with CFLs, so if you have one of these controls on your outdoor lights, check with the manufacturers and the CFL product packaging for product compatibility.