Thinking about switching to LED bulbs? Then there are a few things to keep in mind. Here's what to keep in mind:
Light temperature
The most important lesson is the color temperature. This is measured in Kelvin (you can find this on the packaging of any light bulb). Warm white, like the old-fashioned incandescent lamps, corresponds to about 2700 Kelvin (K).
Note the fitting
If you still have incandescent lamps, simply replace them with LED lamps with an E27 fitting. They have the same threaded fitting, so they fit perfectly. Some halogen lamps also have such a fitting, so you can also replace it with the same LEDs.
Lamps in a circuit sometimes have to be replaced all at once
Whether you should replace lamps that are together in one circuit all at the same time depends on whether the lamps are high or low voltage lamps. Low voltage lamps have 'pins' to connect them. High voltage LED lamps have a bayonet fitting.
When it comes to low voltage lamps, they need a transformer in the ceiling or in the fixture. Some LED lights have built-in circuitry that can handle most (but not all) transformers, so you don't have to replace them.
In other cases you have to replace the transformer with an LED driver. This is because the transformers have too much power for the small amount of electricity the LED lamps require. You need an electrician for that.
This is what you do with old, still functioning lamps
If you replace bulbs that still work, it's best to throw them away in a recycle bin. This does not apply to fluorescent lamps. Please note that you should not throw these lamps in the trash because they contain mercury. You can hand in these lamps with the chemical waste.
