It’s true that taste is not discussed. The lighting of our house is a very personal matter and must be tailor-made, there is no formula. But who never fell into the mistake of using dichroic lamps in the room and not being able to watch television because they feel dazed? Or did you use bulbs that emit too much heat in the bathroom and exude when it comes to makeup? Not counting the gigantic bill of the end of the month. To avoid this kind of problem, but to preserve your house with your face, check out the 10 golden rules in the Lighting in the House of the architect and Light designer Neide Senzi, responsible for the lighting projects of the Ipiranga Museum, Municipal Theater and Municipal Market, among others.
- The lighting design of a residence must take into account not only the aesthetics, but the function of each environment and the relation that the inhabitant will have with it.The positioning of the luminaires should be thought according to the decoration, always taking into account the functional aspect of the room.It is important to find out the ideal type of lamp for the desired lighting effect and the optimal positioning it should have. The characteristics of the product must meet the needs of the environment, not the other way round. 2. In the kitchen, you need to see the food accurately. Therefore, the ideal for this room is to use lamps with large color reproduction index (IRC). Incandescent lamps (such as halogen and dichroic) are the ones with the highest IRC. 3. In the Living Room, the environment needs to be pleasant and cozy. To have this effect the ideal is to use lamps with a yellowish-colored appearance. Focused lighting, obtained with reflective lamps (such as dichroics), is more sophisticated, but should be used as caution since it can cause a sensation of glare, depending on where it is placed. They must also be well distributed because they do not distribute light through the environment. The best option is to use more diffused lighting, with suspended luminaires. 4. In the room, the uniform and indirect light is the one that gives the best result. It can be obtained with luminaires with acrylic filters or frosted glass. Lighting needs to adjust to the activities that can be developed in the bedroom – reading, watching television, dating, changing clothes. A feature that is usually very useful is dimerization, that is, a control for the intensity of the lamp. 5. In the office the lighting should be focused on a few points – on the books and shelves and at the desk. But you also have to work to avoid glare.Reflector lamps, for example, can strike the computer screen and leave the environment more tiring. 6. If you enjoy playing with different lighting scenes, the dining room is the best place. Depending on the desired mood – a family lunch, a dinner for two, a reception for friends – the lighting can be modified. Some scene options are: two spotlights on the table from the ceiling that create a more intimate atmosphere and leave the rest of the house in the shadows; Diffuse light on the table, which leaves the room illuminated as a whole; Washers to create an indirect and cozier lighting, ideal for a family lunch; Or a central pendant chandelier, which could have dimerization to control the light intensity according to need. 7. The bathroom is the room where most mistakes are made of lighting. The basic rule is: uniform and intense lighting, especially on the sink bench. Reflective lamps should be avoided at all costs because they create shadows on the face and harm women when it comes to makeup and men when they shave. Lamps with milky acrylic, milky glass or diffusing lamps, such as fluorescent lamps, are indicated for the bathroom. The dressing room light, which some use in the bathroom, is also quite detrimental to the appearance as it creates shadows, and the lamps are very warm, making the mirror user sweat easily. (This lighting is only used in the dressing room for the artist to simulate the view that the audience will have of him: with lights in focus). 8. It is important to think about the amount of light really needed in each room. Many designs exaggerate the amount of bulbs that often focus on spaces that do not need as much light and leave dark places that should be brighter. In the garden, for example, it is common to see 300-watt bulbs being used at various points of light. They are unnecessary. Lamps with 70 watts of power would have a very similar effect with an immense energy saving. 9. The color of the room walls should be taken into account to choose the best way to light it. In the case of darker walls that absorb more light, the environment needs more intense light bulbs. The appearance of the color of the lamp should also be taken into account: if it is yellow and hits a blue wall, it may leave it green and the user loses the color effect he wanted when choosing the paint. If the dweller opts for lighter color inks, you can play with colored filters over the bulbs and produce color effects with greater versatility. 10. Every lamp emits heat, some more less. It is important, when choosing the lamp, to take into account its emission of heat.Incandescent lamps are the ones that emit the most heat – putting them just above an armchair to watch television or on the beach will make anyone sweat. It is good to remember that the more efficient the lamp, the less heat it emits – and the more the user saves on the light bill.
Additional Notes By Ricardo Trauer.
Nowadays the technology of LED bulbs has made their costs lower and norms are imposing the end of incandescent bulbs. With the proliferation of LED lamp models the choice of the best lamp has become even more difficult. And to make matters worse, LED bulbs are not usually dimmable and only a few models actually dimmerize well. When choosing LED lamps that will be used in conjunction with automation the care needs to be redoubled to ensure good dimerization without any surprises or unwanted effects. There are many good products and also many bad products.Whoever opts for the lowest price will not have satisfactory results at the time of automation and will jeopardize the economy. Iluflex conducts extensive testing of marketed products and collects good and bad experiences that accredited integrators consistently report. Therefore we advise the search for a good professional who will be able to guide the client well when choosing lighting and its automation.
Here Are Some Important Tips For Choosing Good LED Bulbs.
- A good lighting design should consider the dimerization of lighting.This is even more important in environments that have varied demand, that is, they require a different amount of lighting depending on the moment.For example, in the TV room or hometheater, it is important to reduce lighting when watching a movie, to create a more pleasant environment while at the same time helping to better see the content of the film but not completely dark. Another good example is in the bedroom, where you want less light, especially when you want to get up in the middle of the night, not wanting to wake someone up.
- LED lights bivolt or fullrange, which work well at any voltage supply does not dimerize.Only opt for these models if it is a circuit to switch on or off.This is because by varying the supply voltage, the lamp driver compensates for these variations. It is no use insisting, we have already tested several models that promise to dimerize even in this condition, but the results are bad.
- Watch out for the power factor.In general, good bulbs have a power factor greater than 0.95.The cheapest bulbs get to have pretty bad power factor, like 0.5. There is no standard in Brazil requiring quality in the lamp driver. And to make it worse, many manufacturers simply do not comply with what is written in the manuals or packaging, because it is very difficult to see if what is promised is met. What is the consequence of this? A low power factor will generate an increase in consumption. For example, if a 10W LED bulb has a power factor of 0.5 it will spend 20W to produce 10W of useful power to power the LED. That is, you end up paying double for energy. To make matters worse, bulbs with low power factor will still generate a lot of noise in the mains. Lamps with high power factor are more economical and more efficient. So a bulb with the same 10W and 0.95 power factor will spend 10.52W and will still generate less noise in the mains.
- The constructive form of the blade also interferes.An LED lamp needs to dissipate the heat from the LED, which unlike incandescent bulbs, is not irradiated.The heat is led to the sink and this in turn exchanges heat with the environment by convection. This is very different and several lamps sin on that.The consequence of this does not appear immediately because the useful life of the LED reduces when it works very hot. So light bulbs with a good (metal) heatsink will have longer lifetimes than bulbs with small or plastic sinks. In general, the heavier a lamp, the more metal it will have to help dissipate the heat and therefore should be more expensive. But by weight we can already have a good idea of how it was built. So, in doubt, prefer the heavier ones.
- Lamp life also varies greatly from model to model.What many manufacturers do not report is the life of the driver, ie the electronics that power the LED.The LED chip usually has a longer life than electronics. Common electrolytic capacitors do not exceed 5,000 hours. So it’s no good if the lamp has 50,000 hours of useful life if the driver is going to break down well before that.
This is a good reason to prefer lamps that have separate lamp driver. If the driver crashes, you do not need to change everything. And it is quite likely that it will last well less than the LED bulb.
- When choosing dimmable LED bulbs there are several technologies for diming LED bulbs.Basically there are models that vary the itensity by changing the supply voltage (dimmers based on TRIAC or MOSFET).And there is another large group of drivers that have a control signal input separate from the power supply.The first group is preferred in simple projects as it is much easier to install and find. However, the second group will produce a much better result and is preferred in professional projects, auditoriums and places where a higher quality of dimerization is required. In this second group, choose drivers that have control input from 0 to 10 V and use the IB-221 to control. A dimmer can control a large number of drivers and our model still has the advantage of having a relay to cut off power to the drivers when the lamps are off. This helps reduce the standby consumption in case the output voltage is 0 V. Use these cases to also turn off the power of the drivers, which Iluflex IB-221 dimmer already does automatically.
- Watch out for the color rendering index, the IRC.At first they were pretty bad and only the very expensive LED’s had a good IRC.Nowadays the technology has already evolved a lot and this has been improving every year. But even so, for more demanding applications, the lamps with the best IRCs will be more expensive than those with medium IRC. Avoid models that the IRC is below 0.7 that will harm the lighting of the environments. Take care of this in environments such as a kitchen, dining room, closet and nicely decorated areas, so that lighting does not change the colors of food, jewelry, pictures, clothing and accessories. In these environments, the ideal is an IRC above 0.85. For environments that have works of art, the ideal is to have an IRC above 0.95.
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