Remember, it was in the time of the energy indifference. They brought into our living rooms a powerful, warm light that filled by its indirect lighting the pleasant evenings. More colloquially called “halogen” halogen streetlights brought a nice bright comforts and a warm atmosphere. Why have they disappeared? Simply because they ate so much, excessively. Set aside, forced into a dark retreat, they end up at best in a corner and at worst in an attic or in defence. Get out your halogen lamps, they can relive through the LED.
It’s a colleague who spoke to me recently. She wanted to continue to use the lamp in his new home… having neither ceiling nor applied. Forced use of lamps on foot, it wished to either consume 300W or 500W during every evening. It’s true that some of these fixtures have been ercherches in interesting design. It is often a shame to separate an object useful and decorative.
I remembered that a few years ago I started to search the Internet if LED bulbs existed as a replacement for these lights halogen bulbs. They were quite common. It was the opportunity to learn that their characteristic shape of sticks is sweet no of R7S.
In 2015, there are LED bulbs R7S format. They are not all the same shape as their halogen counterparts. LEDs have making them overweight as we can see in the pictures. We wonder why the manufacturers created as large blisters? Electronics probably…
The bulb which is more than can be prohibitive if it is visible. What saves it is that you never see. The configuration of these lamps are designed to bring halogen bulbs up to the ceiling in order to not burn the eyes. So positioned in height LED bulbs kids escape the look. Fortunately!
The connection is the same, we must be vigilant when you acquire this kind of bulbs. The more than generous forms of the substitutes can in some cases prevent drag and drop in the luminaire which begs to be less energy-intensive. To install the new bulb, if the congestion on the lamppost is not a problem, it will simply remove the glass cover of the old halogen bulb. He won’t. The weight of these bulbs can also surprise. While a conventional halogen bulb has a weight 9 g pen their LED replacements appear shameless 155 g. Fort Fortunately, streetlights care little about this difference.
What I learned in doing research on the subject is that there are a good number of LED bulbs that can replace the bulbs R7S. All do not clearly display their characteristics. If on Internet is not visible, one of the following settings, continue your way or ask the dealer. What sets apart them is:
light output: expressed in lumens. For a high intensity light choose a high light output (> = 1200 Lumens).
the color of the light produced more commonly referred to as the temperature. It is expressed in Kelvin (K). A color approaching a classic halogen will be decked out for the characteristic “warm white”. We must find blisters which temperature corresponds to 2700-3000 K.
the angle of diffusion. The LED being guidelines light sources must focus on wide diffusion angles to that light is harmoniously distributed in the room.
the length of the bulb: for conventional street lights, the bulb is 118 mm
dimmable: the possibility of being connected to a dimmer.
All these parameters influence the price of the LED bulb. That said, a LED light bulb R7S, of 118 mm, 1200 Lumens, 3000K, 14W dimmable can be in shops online such as Amazon at a price of €20. For my colleague, sales period, the bulbs have been bought €12.08 including postage. I’m also buyed one in order to revive a halogen taking dust and which could be reused.
What can I expect? At first significant energy savings. 300W halogen bulbs could be replaced with LED bulbs consuming more than 14w. Not bad! Light rendering is quite satisfactory even if you will never reach with the power of light.
Installation is easy and if you take a dimmable bulb we can continue to use the present drive to base on the halogen streetlights. The bulb I bought varies in intensity by address using the drive of the lamp. This n “is very disturbing but we are losing the linear variation characteristic of halogen bulbs and so flattering to the eye.” On the other hand, when is positioned the drive up and use a home automation controller (Jack ordered dimmable), the variation is linear.
After several weeks of use, my colleague tells me be always glad of his halogen led Streetlight. I am also. As the intensity of light is not the same drive is often positioned at the maximum. So an advice, if you are a little handy, it can be even more interesting to change the lamp by a conventional switch inverter works stop and buy a non dimmable cheaper and more powerful LED light bulb!
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