A light-emitting diode, or LED, is a solid-state semiconductor that emits light when a current passes through it. LED light bulbs can replace an old incandescent or CFL in all your existing fixtures, including track lighting, room lighting and outdoor flood lights, just to name a few.
While the Government slowly phases out inefficient incandescent bulbs, many consumers are seeing the value in LEDs. Not only will they save you money on your energy bill, they will last 25x longer than your old bulbs! No more worrying about changing those hard to reach lights!
While LED household lighting may require a higher initial investment, their longevity, low maintenance and significant cost savings make LED bulbs a purchase that can pay for itself over time.
LED Light Bulbs Made Easy
1. Select Shape
2. Choose Brightness and Energy Efficiency
3. Choose Color Temperature (Measured in Kelvins)
Features to Consider
Dimmability: Not all LED bulbs are dimmable, but most are. You should check the specifications of the bulb if this is a feature you want.
Home Automation: WiFi technology is available for turning LED light bulbs on and off, dimming, setting scenes, and even changing the color of the light.
Remote Controls: LED bulbs with remote controls provide convenience and eliminate the need for dimmers.
Warranty: Many LED bulbs come with a warranty covering replacement costs if the bulb malfunctions.
Which Bulb is right for you?
"A" type bulb shapes are standard house hold light bulbs. The number after the bulb shape is the number of eighths of and inch in diameter. For non-imperial measured bulbs the number following the bulb shape is the number of centimeters at the widest point of the bulb. Standard bulb sizes include A19 for imperial measurements and A60 for a slightly smaller metric measured bulb.
B and C Shaped Light Bulbs
B shaped bulbs are also know as Candelabra Light Bulbs. The have a bulged base that tapers to a rounded or pointed tip. In some bulbs the tip is bent giving the slight look of a licking flame. C shaped bulbs are similar to holiday lamps.
These bulbs are common in chandeliers, night lights and lower wattage applications such as holiday string lights.
Typical bases for B and C shaped bulbs are E12 in North America.
PAR Light Bulbs: PAR16, PAR20, PAR30 and PAR38
PAR light bulbs utilize a parabolic mirror or reflective surface to focus the light. For LEDs the PAR designation is used to define the shape, as most do not have a reflective lower surface due to the directive nature of LEDs.
Common PAR lamps include the PAR20, PAR30, PAR38 and PAR42, though many other sizes exist. These bulbs come in various beam angles that result in spot and flood lamps.
This shape is very similar to the R shape and in some cases the PAR and R are interchangeable as shapes for LED replacements.