LED lampThese are modern light sources with many undoubted advantages, among which one can note a long service life or a very low cost of use. The purchase of the lamp itself is more expensive than for sources based on other technologies. However, you should not choose the cheapest LED lamps, as they will not provide good quality lighting. In order to obtain a light that is comfortable and convenient for users, the choice of a lamp must be made consciously, considering several parameters - and choosing a product of good quality. At first, reading the parameters of LED lamps can seem difficult. The specifications provided by the manufacturers are sometimes obscure and in some cases even confusing. Therefore, we decided to acquaint our customers and readers with the basic principles for choosing these modern light sources.
Despite the development of LED technology, he continues to regret that the light emitted by LED bulbs is unhealthy, “unpleasant for the eyes”, unnatural. When we think of LEDs, blue or bright, very cold lighting, at best associated with a shop window, comes to mind. Many of us are constantly reluctant to the idea of replacing "traditional" light bulbs in our own apartment with LED light sources. It is not fair. LED lamps are very economical, and with the right choice of them, we can get friendly, healthy, comfortable lighting - both for work and and for relaxation.What parameters should I pay attention to and what do each of them mean?
This is a value that, simply put, will tell us how much our light bulb will glow. The higher the value, the more light our LED will emit. The unit of luminous flux is the lumen (lm).
The luminous flux is determined on the basis of special measurements carried out in the laboratory. It happens that unscrupulous lamp manufacturers take advantage of the fact that the values indicated by them cannot be verified by users. Therefore, one value indicated in lumens is not enough to choose the right light bulb. The highest value will not always be the most desirable for us.
The lumen output information is useful when choosing a replacement for a conventional or halogen lamp.
The wattage rating specified by the manufacturers determines at what wattage the device operates correctly and according to the instructions. The unit in which the value is specified is the watt (W). Remember that the lamp power tells us how much consumption the diodes and their power circuit generate, and not how much our lamp will burn. At the same power, the luminous flux of individual lamps can vary significantly depending on their quality, the components used, the light transmission of the lampshade, or parameters such as light color and color rendering index, which we will mention a little later. Inefficient older type LEDs can emit little light with high power consumption. So remember not to be fooled and not to make a choice based only on this parameter.
To really evaluate the effectiveness of a given LED lamp, both parameters discussed above , i.e. both luminous flux and power , must be taken into account . We calculate efficiency by dividing the flow, expressed in lumens, by the power, expressed in watts. The value obtained in this way tells us how economical and how efficient our light source is. The higher the ratio, the better. Modern, efficient LED bulbs get efficiencies up to 100-140 lm/W.
The beam angle is the area that a given bulb can illuminate. The larger it is, the more diffused and, therefore, weaker light we will receive. Light at a 30° angle will be highly focused and effectively illuminate the interior, especially from a great height. Therefore, this beam angle is recommended for ceiling lighting. For shelf and shelf lighting, we can choose lamps with an angle of 60°. 120° LED bulbs are used to replace traditional 40W and 60W incandescent bulbs.
The color of the light emitted by the light bulb affects the well-being of people in the illuminated room, their ability to concentrate or relax. The applause of light also has an aesthetic value. Depending on it, the appearance of the room or the illuminated objects changes.
The color of light is determined using the color temperature expressed in kelvins (K):
- below 3300 K - heat color
- from 3300 k to 5300 k - neutral color
- above 5300 k-cold color
Warm-colored lighting works great in rooms designed for relaxation : in the bedroom, bathroom or living room. The color of cold promotes concentration , stimulates, increases the ability to concentrate and learn. It is also preferable for work that requires visual effort. Cool color lamps work well in offices, production halls, we can use them for lighting around the table, for example in a table lamp. In hallways, lobbies or stairwells, you can use light of a neutral color, that is, an intermediate color between warm and cold.
LED lamps for living room and bedroom - LampaLampa.pl offers:
Edison LED Decorative Lamp 5W Silver Warm
Decorative lamp in a retro style, emitting light in a pleasant warm color (2700K). Power 5 W. silver glass color is a novelty in our offer. The light source is ideal for relaxing and at the same time comfortable. It is well suited as a ceiling light in the living room.
Edison LED 5W Silver Warm Smoky
The same light bulb, smoked glass version. It emits atmospheric light in a very warm color that works very well in the bedroom, among other things, although not only. It is recommended to use in all rooms where we want to create a cozy atmosphere.
For study and work:
Żarowka Edison LED 5W Transaprent White
Decorative LED lamp emitting neutral white light with a color temperature of 4000 K. The glass of the lamp is transparent. Another novelty in the lampaLampa.pl store. great for lighting rooms where we study or work, but not only. This is a universal light source for a child's room, hallway or living room.
Additional suggestions when it comes to modern LED decorative lamps can be found in the category of LED lamps .
Whether objects illuminated by our bulb will look natural will depend on the CRI (Ra) color rendering index. Artificial light sources are defined relative to sunlight, which has the highest color rendering index (Ra=100). The color rendering index is one of the most important parameters when evaluating LED lamps . High CRI light is neutral and pleasant. Sources with low CRI emit artificial light that is not very user-friendly, which has a bad effect on well-being and makes colors unnatural.
Low CRI is typical for low quality LED lamps. Cheap LED light sources can actually have a negative effect on health and well-being and are not suitable for residential lighting. They emit a light that winks discreetly, and although we don't realize it, it's tiring for our eyes. Good quality lamps are made from modern components and emit a safe light that can serve as comfortable lighting for living spaces. LED light sources are economical and we can use them for a very long time without having to change the lamp. Thus, an investment in good lighting powered by this technology will be an investment that will certainly pay off.