Figure: The application of the Shanghai Lujiazui Financial Center project. LED light strip products in various applications in space: light trough and ceiling algae indirect lighting, large-area luminous ceiling, large-area luminous wall, art decorative light strip.
So, as an LED light strip, what kind of professional training should it have? In other words, how to choose a professional LED lamp strip with good effect?
Today, we will use LED light strips to select cheats, so that you can become a lighting expert immediately!
1, the light should be even
There are two meanings of uniform illumination:
1) The brightness between the lamp bead and the lamp bead should be the same, which is related to the quality of the LED lamp bead.
Quick judgment method: use the eyes!
Figure: Use your eyes to see if the light strip is evenly illuminated
2) The brightness of the first and last tails of the lamp should be the same, which is related to the voltage drop of the LED strip.
The LED strip needs to be powered by the power supply. When the voltage drop of the LED driver is relatively large, the brightness of the LEDs connected to the long LED will be inconsistent.
Figure: The voltage drop of the LED driver will cause the brightness of the strip to be inconsistent.
Quick judgment method: connect the required length, illuminate the lamp strip, and discharge them together for comparison, and observe with eyes.
2, the light color should be consistent
Light color consistency is also a parameter to test whether a LED lamp with a lamp bead quality is qualified.
Judgment method: Look directly at the light strip, or find a piece of white paper, vertically close to the LED light-emitting surface, you can basically judge whether the light color of this light is consistent. Looking at it with the eyes is the most intuitive.
Figure: Unqualified light strip products with inconsistent color temperature
3, the color temperature should be selected
In general, Didar's general space uses more light bands of 3000K and 4000K color temperatures. But for some spaces, low color temperature lights are necessary, such as high-end hotels and villa clubs.
Figure: Spaces such as high-end hotels and villas are relatively biased towards choosing warmer LED light strips to create a warm, comfortable and homely atmosphere.
Figure: General lamp strip products are available in 3000K and 4000K color temperatures. Opto LED Lights with Rainbow Color Series can provide three color temperatures, among which the special 2500K color temperature products have more red components in the spectrum, which are suitable for low color temperature occasions such as high-end hotels, villas and homes.
4, the color rendering index should be greater than 80
The color rendering problem of LED strips is not very important when applied to indirect lighting troughs, but when applied to large-area illuminated ceilings as basic lighting or in display cabinets as display lighting, The color index Ra>80 is a requirement that a professional LED strip must meet. This is also the requirement of the national standard GB50034-2013.
5, the light belt should be continuous
The continuity of the light strip is an important consideration for the effect of the lighting design, which requires the entire strip to ensure no break zone and shadow.
Figure: Continuous light strip effect vs. Common intermittent LED strip effect
Figure: Through the tool-free plug-in connection, you can ensure that the light strip is continuous without shadow
Source: Op LED lights with rainbow series
6, the connection should be convenient to install
When used in the light trough, the space of the lamp trough is relatively small. If it is necessary to perform wiring and fixed installation operations, it is really necessary to install the master's life.
Therefore, it is necessary to select a light strip product that can be quickly plugged in and quickly connected by a tool. Usually the installation steps and methods of this type of product are relatively simple:
Figure: Quick-connect quick-release tool-free installation of LED lights with product mounting accessories
Figure: Quick-connect quick-release tool-free LED lamp with product installation process
Source: Op LED lights with rainbow series
7, the light effect should be as high as possible
When it comes to LED, energy saving is already a proper thing. For LED strips, the importance of light efficiency has a lot to do with its application scenarios. For example, when applied to indirect lighting of lamp sockets, the requirements for light efficiency are relatively not applied to large-area luminous ceilings or showcases. It is high.
As a professional LED light strip, the light effect should be at least 60 lm/W under the premise of color rendering index Ra>80. If you can do 80 lm/W, that's great. If you do 100 lm/W, um. . . Then you have to ask the price and see if it is worth it.
In general, the manufacturer will provide the technical parameters of the product, as shown in the following table, the luminous efficiency (lm/W) can be obtained by dividing the luminous flux (lm) by the power (w):
Figure: LED lamp strip product technical parameter table
Source: Op LED lights with rainbow series
8, the length of the connection should be considered
Some things are as long as possible. . . Ok. . . For example: the length of the connection of the LED strip.
Under the premise that the electrical specification allows the control voltage drop to be controlled, the longer the LED strip can be connected, at least it will save some power (for field installation, it means reserved power position and construction). Both are reduced. Sometimes, especially for the light trough, this is a very headache.)
For the maximum connection length requirement, each project site will be different, but knowing the maximum allowable connection length of the product in advance is a necessary step before selecting the product.
Generally speaking, the luminaire manufacturer will provide the following wiring length quick check table, which is convenient for the user to quickly check the speed match:
Figure: LED drive power can be connected to the light bar meter speed checklist
Source: Op LED lights with rainbow series
I believe that you will no longer be worried about how to choose LED strips.
Finally, sum up the professional qualities necessary as an LED light strip, summed up as "eight essentials":
Uniform illumination
Light color must be consistent
Color temperature should be selected
Significantly want to >80
Light strips should be continuous
Wiring installation is convenient
Light efficiency should be as high as possible
The length of the connection should be considered
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