Deciding on the best colour
You always have the option to count on incandescents providing a warm, yellowish color. But LEDs come in a wide variety of colours.
As shown off by the Philips Hue, LED lightbulbs are capable of exhibiting an impressive colour variety, from purple to red, to a spectrum of whites and yellows. For something similar to the light, however, you are probably looking for the home that incandescents produce.
While lightbulbs labeled as bright white will produce a whiter light, closer to daylight and similar from what you see in retail stores warm white and soft white will generate a yellow colour, close to incandescents.
If you need to get technical, light colour (color temperature) is measured in kelvins. Your typical incandescent is someplace between 2,700 and 3,500K. If this's the color you're going for, look for this variety while shopping for LED bulbs.
You'll pay more for an LED bulb
LED lightbulbs are like hybrid cars: not more expensive to work but costly upfront.
When changing to LED bulbs, don't expect to save buckets of cash. Think of it as an investment. Luckily, competition has increased and LED lightbulbs have come down in cost, but you should still expect to pay more than an incandescent.
Eventually, the LED bulbs will pay off, and in the meantime, you will appreciate less heat generation, longer bulb life, and even the option of controlling them with your smartphone.
Bottom line: you won't see significant savings in your electricity bill, unless you are replacing many incandescent bulbs in a large house.
Watch out for non-dimmable LEDs
As a result of their circuitry, LEDs are incompatible with dimming switches that are conventional. In some instances, the switch must be replaced. Other times, you will pay somewhat more for a compatible LED.
Most dimmers, which were probably designed to function with incandescents, work by cutting off the number of electricity sent to the bulb. The electricity that was less drawn, the dimmer the light. But with your newly acquired knowledge of LED lingo, you realize that there's no direct correlation between LED brightness and energy drawn.
This guide describes some LEDs buzz when tied into a dimmer, flickr, or will hum.
If you'd like your LED to be dimmable, you have to do one of two things: find LED bulbs compatible with traditional dimmers, or replace your current dimming switch with a leading-edge (LED-compatible) dimmer.
When shopping for LEDs, it helps to understand the type of dimming switch you've got, but should youn't understand (or would rather not go through the trouble), only search for LED lightbulbs compatible with standard incandescent dimmers. We analyzed a slew of them to find out which LED bulbs work best with dimmers, to make things easier for you.
Not all light fixtures should use LEDs
Knowing where it's OK to place an LED will ensure the lightbulb won't fizzle ahead of its time.
You probably understand that LED lightbulbs run dramatically cooler but that doesn't mean they don't produce heat. LED bulbs do get hot, but a heat sink pulls away the heat in the foundation of the bulb.