We are all a little bit lost when we bought a light bulb… Since the incandescent light bulb no longer exists, it is difficult to navigate between all of his different powers and huge choice of existing lamps on the market! Still, you need to replace your incandescent light bulb of 70W who has grilled in the kitchen… How to find one that will both enlighten your meals?
Check the technical characteristics of the socket.
Before you buy a bulb, it is important first of all to check the technical data on the nerve of the chandelier. For example, it may have wrote “E27 60W”, that means a light bulb of base E27 (big Cap screw) with a maximum power of 60W.This power is the power that is consumed by the bulb and not restored power…Hula! This is complicated! To be clear: If we take a LED bulb that consumes 10W but which returns equivalent to 100W, we must look at the power consumption which is 10W, so you can install it on your chandelier without worry!
How to determine the power need you.
There was a time where, when we were buying a bulb, we not only watched “Watts”.It was very simple because we knew that with incandescent bulbs, 40W was enough for the room, that he would take 70W for the small dining… But those days are over! Today, when you go to buy a bulb, focus on lumens. The lumen is a unit used to define the importance of the luminous flux. This is especially valid for LEDs bulbs at bestcraftblog.com or CFLs that do not have the same rendering as lamps incandescence. You should also know that, depending on the quality of the light bulb, a 5W LED bulb can make 350 lumens and an another 600 lumens!
OK, but how to calculate the value in lumens you need? One lumen illuminates a certain area (in square metre) which corresponds to a value in lux:
Lux = lumens / surface.
Here’s a recap of the necessary illuminance data:
Stairs: 50 Lux.
Closet: 30 Lux.
Toilet: 200 Lux.
Kitchen: 300 Lux.
Entrance hall: 100 Lux.
Room: 200 Lux and more if needed.
Dining room or living room: 300 Lux and more if needed.
Office: 400 to 500 Lux.
So for toilets 2 m², we know that it will take approximately 200 Lux, then do the following calculation:
Lux = lumens / surface
So Lumens = Lux X surface
2 x 200 = 400 lumens.
That means a bulb of about 400 lumens to illuminate your toilet!
Equivalencies according to bulbs.
To try to make your life easier, some manufacturers give you equivalencies, as an indication of their bulbs.
For eco-halogen bulbs, it’s the easiest because it is they who will connect most of the light from an incandescent light bulb:
-In incandescent 40W worth 28W in eco-halogen.
-In incandescent 60W worth 42W in eco-halogen.
-75W in incandescent worth 53W in eco-halogen.
-100W incandescent worth in eco-halogen 70W.
For light bulbs, Leds, here’s what generally is applied (although it should always check the lumens because these data vary from one manufacturer to another):
-4W is equivalent to 40W.
-5W equivalent to 50W.
-10W is equivalent to 100W.
If you want to bring closer you to the most possible light made by a bulb with a LED bulb incandescent, you will also need to pay attention to the given Kelvin color temperature. It will take closer to warm white which is around 3000 kelvins.
To advise you in the choice of material that suits you best, cheaper build will publish in the next few days an article that will guide you not on the power of the bulb but on the model (LED, CFL or halogen?).