About GU10 LED Light Bulbs Cool White
GU10 bulbs are easy to recognise by the cap. The two pins each have a bulbous end that fits into the lighting fixture; the bulb is then swivelled approximately 45 degrees, which locks it into place.
GU10s always used to be halogen lights, but they now come as light-emitting diodes (LEDs) too. LEDs are tiny light bulbs that don?t have a filament that burns out, and they last a lot longer than a traditional incandescent or halogen bulb. While halogens can be switched on and off around 8,000 times, an LED can be typically turned on and off 50,000 times. That makes a big difference.
Colour temperature is measured in Kelvins (K). Those bulbs marked at the lower end of the scale (starting at around 2400 K) will supply you with a warm, slightly orangey, or yellowish light. Those at the upper end, around 5500 K, will give you a cooler, bluer light. What you prefer in terms of colour temperature can depend on what you need the light for. Cool white is best for kitchen or bathroom environments when you need to see what?s going on more easily. More relaxed rooms may be better suited to more yellow light.
If the light switch is a dimmer, placing non-dimmable bulbs in the fixtures is likely to reduce the life of the bulbs and the dimmer function will not work. Not all LEDs can be dimmed, so it?s important to choose the right kind ? the dimmable variety ? if that?s what you require.