Have you considered upgrading lighting? Here are 10 mistakes that most people make often. Read them carefully to avoid detours.
1. The distribution of the purchased light lines is inconsistent
This is probably the most common issue with upgrades. LED lights and luminaires often have more directional outputs. So, for example, if you replace the halogen lamp with an LED, there will be much less spilled light. This type of spill light is actually useful, such as illuminating the walls of a hotel corridor. Similarly, if you replace the fluorescent light with an LED, one-third of the wall will be in the shadow.
The best way to avoid it: buy the sample first.
2. The lamp you bought is too dark or too bright
If you are considering replacing fluorescent lights with LEDs, you can't just match the light output (measured in lumens or lm). Since the LEDs are directional, the same light output may get more light from the LEDs. However, please note that the light output on the data sheet may be exaggerated, and different light distributions may make the room look dim.
The best way to avoid it: buy a reputable brand, check samples on existing fixtures or test samples in the lab.
3. The lamp you bought is too cold
The color temperature is the scale indicating the color of the light source, and the unit is K (Kelvin). The average incandescent lamp is 2700K and the halogen lamp is 3200K. If you replace these fixtures with 5000K LEDs, the space will look cold.
The best way to avoid it: check the specifications and purchase samples.
4. Buy a lamp that makes the color look boring
The color rendering index is a measure of the ability of light to appear in color, or CRI. Usually, you need a CRI 80 or 90 lamp. One weakness of LED lights is the R9 (red) value because it is not included in CRI measurements. Make sure the R9 is also over 80, otherwise the red looks dull.
The best way to avoid it: Ask the supplier for CRI values.
5. The lamp is not compatible with the dimmer
The dimming of LEDs on dimmers dedicated to incandescent or halogen lamps cannot be achieved smoothly. In fact, at low levels, it tends to flicker and flash. This is because incandescent and halogen lamps provide a standard resistive load for the dimmer, while LED circuits make the load mismatch, and sometimes both sets of electronic devices are vying for dominance and causing component failure.
The best way to avoid it: use a LED to test the dimmer, or add a "virtual load" such as an incandescent lamp.
6. Do not check suppliers
In the past few years, a large number of new LED lighting suppliers have entered the market. Therefore, it is necessary to carry out verification. For example: Are they a reputable brand? Are they members of industry associations? How long has the company been in the industry? Are they testing products at a reputable testing organization? Do they have an office in the local area?
The best way to avoid it: check it online and ask around.
7. No decent warranty
Will the supplier give you a warranty? Is it the nearest warranty? Is the warranty period longer than the supplier's time in the industry? Take a closer look at the details of the warranty terms. Sometimes you must register online separately within 90 days to activate your warranty card.
The best way to avoid: Choose a reputable manufacturer and read the warranty terms carefully.
8. Buy a lamp that is not durable
At present, in the LED industry, it is generally agreed that the rated life of an LED is the working time when its luminous flux is attenuated to 70% of the initial value, that is, L70. For example, you might see the L70 with a rated life of 50,000 hours. In addition, optimistic ratings are often used in brochures. There are also "premature failures".
The best way to avoid it: Ask your suppliers what tests they have based on the L70 rating.
9. No long-term consideration
For example, one of your fixtures broke down in 18 months. You call the supplier and change one. As a result, he or she says, "We don't produce this model, we can provide the latest model." It's worth noting that the latest models may look different from the ones on your current ceiling. To make matters worse, the manufacturer does not exist.
The best way to avoid it: If lighting is critical, you can purchase additional luminaires as a backup.
10. The lights are too glaring
When using LEDs, pay special attention to glare problems, especially in the office. Typically, the LED panel transfers all of the light to the diffusing surface of the luminaire, so too much light is present. There is a good way to evaluate glare, which is UGR (uniform glare value), the value should be below 19.
The best way to avoid it: do a brightness calculation, calculate UGR; or ask the vendor to provide a UGR-rated installation example.
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