Perhaps the biggest drawback of LED light bulbs is that they emit more blue light than incandescent bulbs, which are more on the red end of the spectrum.
The cost to manufacture LEDs are higher and therefore, LED's are more expensive to purchase than incandescent or fluorescent lights. However, as discussed above, the cost savings generated by LED's over time and their longer lifespan will help recover and compensate for their higher costs.
Disadvantages: The LEDs performance largely depends on the ambient temperature of the thermal management properties or the operating environment also. LEDs must be supplied with a voltage which is above their threshold voltage, and current below their rating.
In exchange for these generally favorable attributes, disadvantages of LEDs include electrical limitations to low voltage and generally to DC (not AC) power, inability to provide steady illumination from a pulsing DC or an AC electrical supply source, and lesser maximum operating temperature and storage temperature.
One of the most common and frequent problems with LEDs is flickering. In this case, the LED bulbs flickers, sometimes continuously, while sometimes, it happens randomly. The most common reasons behind this are poor capacitors or low wattage.
Over-heating can be a result of a number of design and assembly issues but is still the cause of the majority of LED lamp failures – both in the fitting themselves and also the drivers.
2.1 LED Display Cause Light Pollution.2.2 They Are More Expensive Than Their Counterparts.2.3 LED Displays Have A Higher Power Consumption.
Disadvantages of LED
LED is costly. The higher the screen-size, the more it will cost. LED has a limited range of wide viewing angles. LED is tough to repair when damaged.
LCDs are comparatively less power efficient than LEDs. LEDs are more power-efficient. LCD screens can cover wider angles, and so the display area is large for them. LED screens cannot cover much wider angles, and so the display area is small for them.
The industry standard for LED lamp failure is three per cent.
Why Do LED Lights Get Damaged Fluctuations in Power Supply and Voltage: Such fluctuations can be very damaging to LED lights. Overdriving: Applying voltage or current which exceeds the recommended limit can lead to stress on the components, causing overheating and failure.
These design challenges include light production, thermal management, and manufacturing cost control. For most applications it is hard for the user of the LEDs to set a tight specification on flux and color; generally a range of a color is used.
If you supply your LEDs with a lower than required current, they won't emit maximum brightness. Hence, they won't be able to satisfy your lighting needs. Meanwhile, a higher voltage or current can instantly impair or burn the sensitive components of the LEDs, which may result in an untimely breakdown.
|Advantages of LCD||Disadvantages of LCD|
|It has no geometric distortion||Limited viewing angle and brightness|
|It is very compact, thin, and light CRT displays||It requires an additional light source|
|It does not affect by the magnetic fields||It consumes a lot of electricity which produces a lot of heat|
LCDs have difficulty producing black and very dark grays. As a result they generally have lower contrast than CRTs and the color saturation for low intensity colors is also reduced. Not suitable for use in dimly lit and dark environments.
If the temperature around it gets too hot and it does not have a proper heat sink, that can cause the LEDs in the lamp to overheat and then it will fail.
As well as causing potential retinal damage, LED lights can induce headaches, visual fatigue and increase the risk of accidents, according to the ANSES report.
LEDs, however, do not contain a filament and instead illuminate using a semiconductor. So instead of just instantly burning out like traditional bulbs, LED lights age over time and progressively get dimmer until they stop working altogether. This is what we call “lumen degradation” or “LED degradation”.
LED bulbs don't generate as much heat as other bulbs, but that does mean they can be a little sensitive to overheating. This can cause them to burn out too quickly.
The placements of the lights on an LED TV can differ which means light-emitting diodes can be placed either behind the screen or around its edges. LCDs require mercury for their products causing harm to the environment. LEDs use no mercury and are therefore environmentally friendly. An LCD is cheaper than an LED.
Electrical leaks, short-circuits and electrical leaks that involve short-circuits are some of the more likely faults that occur in LED devices. Unlike faults in conventional incandescent and fluorescent lights, these faults involve short-circuits and can place a burden on the drive circuit.
They Don't Burn Out
LED bulbs don't burn out like regular bulbs, which simply stop working abruptly when they run out of power. Instead, LED bulbs slowly degrade over time. After several years, their brightness dims. This is known as “luminous decay.” When they emit faint light, it's time to change them.
Do LED lights cause eye strain Eye strain is unfortunately another downside to using LED lights, as they're known to trigger issues for people with existing medical conditions associated with migraines and seizures. This is because LEDs produce an incredibly faint flicker, so fast you wouldn't notice it!
Most LED EOS and ESD failures occur due to thermal damage, metallization damage, contact damage, or junction damage. Metal melting commonly is observed due to an EOS, ESD-HBM (ESD-Human Body Model) event. Increased reverse and forward current leakage are characteristic of damaged devices.
Unlike incandescent light bulbs, LEDs don't produce light using heat. This is part of what makes them so energy efficient. The downside is that their components can be sensitive to overheating, which can cause them to burn out prematurely.