Which LED light bulb suits me the most?

To know how to choose the "perfect LED light bulb", you must first understand where the light from your light bulb comes from.

The light coming from an LED bulb takes its source from the many light-emitting diodes that compose it. The number of diodes can vary from one manufacturer to another, ranging from 3 to 20! However, this large difference does not necessarily translate into a difference in light output.

Indeed, the second variable to take into account and the density of the active material used on these diodes. If the density is high, a bulb of only 3 diodes will emit a powerful light. On the other hand, if the density is low, the bulb will need a larger number of diodes to emit an equivalent luminous power.

Note that if a diode breaks, others will break gradually, thus decreasing the life of the bulb...

The power in Lumens

A Lumen is a unit of measure for expressing the amount of light that can generate a light bulb. In theory, an LED is capable of generating, on its own, between 60 and 90 Lumens. Any value above is false or overestimated. FYI, the record of lumen generated by an LED has been recorded at 150 lm / w.

On average, the quantity of lumens emitted by an LED in the current market is estimated at 70. This means that a 12w bulb will offer a power of 840 lm, the equivalent of 60w for an incandescent bulb. We will realize a saving of 48W for each incandescent bulb replaced.

incandescent	Halogen	Compact fluorescent	LED
30w	25w	8w	3w
60w	50w	14w	8w
75w	60w	17w	12w

The opening angle of the light

With the new technologies of optics, the LEDs have been improved, to the point that now we can find some LEDs able to illuminate a whole house.

If the opening angle of your LED is 40 °, the light will be more focused towards a given point. This LED will be suitable for illuminating objects especially in showcases or other.

If, on the contrary, the opening angle is 120 °, the light will spread throughout your space and will be ideal for your home. So, depending on what you plan to illuminate, you will need to find out about the opening angle of your LED.

The color temperature

The degrees Kelvin tell us the type of color that the bulb will emit. Depending on the number, we can get three types of lights: Warm White, Neutral White, and Cool White.

The cold white is made for places where we need white and powerful light. For example a garage or a storage room. The neutral white is rather intended for use in bathrooms, kitchen, or workplace. Finally, the warm light will be ideal for living places, living room, bedrooms.

Before buying your light bulb, look at the color temperature based on the number of Kelvins.