Watt-Lumen Conversion for Incandescent and LEDs

If you are renovating your home and you’re putting his hand to the lighting system, then perhaps we should read up on led.In fact, once dismantled old electrical systems, you should renew completely the system by entering the led lighting, which brings some clear advantages: first, it drastically reduces fuel consumption, then increases exponentially the duration of a single lamp (it is estimated that a light bulb to led hard about 100,000 hours, compared to 1,000 hours for an incandescent lamp).

Do not underestimate the possibility of polychrome installations that give movement and light to your home.

Watt and power

When those who face a restructuring has little experience of lighting installations, occasionally focuses on wattage that a bulb is equipped with: nothing more wrong. It should be noted right away that Watts is the unit of power, the electricity needed to light bulb to light and get to the point of maximum glow, and then of maximum illumination.

Lumen brightness

This has nothing to do with the brightness, i.e. how much light a bulb is able to enact. If you are dealing with very old people, you will ever referring to the bulbs in terms of candles, to indicate more or less Dim light output: this is the key point on which you have to concentrate for a successful conversion of Watts in lumens or lux (this time, unit of brightness, precisely because the amount of lighting of a lumen on one square meter of space).

How to convert lumens to Watts?

There is no rule or a mathematical formula, because the conversion watt lumens varies depending on the type of lighting technology. A traditional light bulb from 100 lumen corresponds to 100W of consumption, while in the case of an Led bulb the ratio is 100 lumens = 10W of power.

Convert Lumen Watt incandescent bulbs

The issue of conversion comes essentially from the advent of these new systems to led, because until reigned unchallenged dominance of incandescent bulbs the relationship between Watts and lumen was absolutely stable: the longer it puts to light up more light, but at the same time will consume even more.

Convert Lumen Watt Led bulbs

A rule that we can apply to have a value, albeit approximate, lumen watt for LEDs is to multiply the number of Watts per 100 in order to obtain corresponding lumens.
The calculation, as stated, is not accurate because you have the conversion ratio lumen watt also varies according to two factors: type of light emitted (if hot or cold) and luminous efficiency.
Watt being equal then we can find devices with different number of lumens. The Council is of course to buy products with a value of more lumens.

So if you want to operate a successful conversion of units, you will need to first figure out what type of light output you want for your environment. In very large environments where you need a very cold day lighting, such as schools and hospitals, you need to equip 4500-6000° K lights, which have the property to reflect so much changing the colors around, releasing gleams in shades of blue and giving the rooms a very sterile and clean. If your environment requires a very clear lighting but not so sterile and unreal, then we should get off of alcohol and opt for neutral light fixtures from 3500-4500° K: these are particularly suitable for professional offices, canteens and pass (lobbies, corridors). Finally, if you want warm lighting, cozy and softer, less tiring for the eyes and more home, the best are the hot light bulbs from 2000-3500° K.

Lumen Watt conversion table

Let us now see some numbers to comparison between led, incandescent and fluorescent.

Lumen Standard Glow Fluorescence Led
450 506 29w 9W 8W
800 60W 43w 14W 13W
1100 75W 53W 19w 17w
1600 100W 72w 23w 20W
Average duration 1 year 1-3 years 6-10 years 15-25 years
Energy saving / 30% 75% 80%

 

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