Top 5 Challenges And Disadvantages Of Led Lights

disadvantages of led lights

SSL (Solid State Lighting) is a solid-state lighting technique in which the light source is from light-emitting diodes (led chips) rather than filaments (in incandescent bulbs) and gas. 

LEDs address some remarkable disadvantages of traditional lighting and have much longer longevity. Besides, they also have higher luminous flux output with better color rendering, high luminous efficiency, and lower electricity consumption. 

These features have made LEDs the best replacement for incandescent or fluorescent lamps. Yet, this lighting technology still has some drawbacks in normal use, such as sensitivity to high temperatures, the possibility of light pollution with high-intensity lighting, and other issues related to cost and installation.

In this article, Bestledlights will identify the five specific challenges and disadvantages of led lights! Let’s dive in! 

LED lights still have disadvantages challenging the manufacturers.
LED lights still have disadvantages challenging the manufacturers.

LEDs Are Extremely Sensitive To High Temperatures

The LED’s lifespan is impacted by the ambient installation temperature, especially high-power products. Though this type of light is remarkably more energy efficient than traditional light, 20% of the leak energy of the LED light turns into heat and emits it into the surrounding environment.

The manufacturers believe that temperature is the enemy of LED lights in a high-temperature environment. The bulb will be permanently damaged or decrease remarkably in lighting performance. Therefore, the LEDs’ operation may depend heavily on the arrangement and installation to avoid the generated heat in the lighting process that affects the lamp’s durability.

Poor quality adapters for LED driver power can also lead to device temperature problems, making it more likely to get short-circuiting. Other than that, the heat sink also plays an important role in keeping the appropriate temperature for the operation of the lights. Many lights are made from poor heat dissipation materials that generate heat transfer mistakes from the led chip and significantly impact the products’ durability. Especially in a humid tropical climate country like Vietnam, where LED lights in particular and electrical equipment, in general, face great challenges on the temperature and humidity. Hence, this disadvantage of LED technology becomes more apparent. 

The LEDs' power and durability are severely affected by high temperatures.
The LEDs’ power and durability are severely affected by high temperatures.

Cost For Purchase And Installation

Obviously, LED lights are more expensive than other types. Although manufacturers keep improving their production process, minimizing the production cost for lower product prices, most Vietnam consumers still find LED lights 2-3 times more expensive than traditional bulbs.

The high price is due to the manufacturing process that meets the demand of international standards, as the led light goes with many parts that traditional lights do not have, such as radiators, led drivers, etc. 

The materials for good heat conduct are usually expensive and heavier than the normal ones, which leads to the increase in cost in both the product and the transportation stage from the manufacturer to the market and the consumer. 

Moreover, to manage the device lighting system, the manufacturer designs a multi-purpose circuit for more lighting options that significantly increase the overall product cost.

Regarding the installation costs, LED lights technology requires a more complicated installation process than traditional ones. It requires the optimal installation location for the best lightning capacity and, most importantly, the best heat dissipation for a better duration. 

Normally, families or businesses who replace their lighting system within their home or office with LED lights will need a professional electrician for effective and safe installation.

Although the initial cost (purchase and installation) is pretty high, the LED lighting system has the advantage of electricity efficiency and a lower maintenance fee than others.

Flashing Of LED Lights 

Believe it or not, most LED lights are flashing lights. You can easily check this feature by using your phone to take pictures or videos under the LED light. If your video is blinking, this proves that the light bulb has a high blinking frequency that is harmful to your eyes.

The LED flickering is due to the large ripples in the DC applied to SSL. Also, the reason might come from the irregular power supplies to the light and the impairment voltage of the AC power cord to the device. The emitted light receives power through a power adapter-led driver. If the led driver supplied power is unstable, the emitted light might flicker as a breakdown sign.

Many types of led lights still blink continuously during operation
Many types of led lights still blink continuously during operation

Light Pollution For Your Environment

Nosleep cities - led lights to stay on for a long 
Nosleep cities – led lights to stay on for a long

Excessive light in any corner leads to the halo effect or light pollution, as LED lights technology’s natural design and operation always illuminate light in one direction rather than evenly distribute it. 

For the low-lumen LEDs, the directional light might be dazzled for general household lighting. While with high intensity led light – outdoor and street light, will lead to serious problems of light pollution in the long term.

Many researchers also indicate that LED lighting produces too much blue light that is harmful to human sight.

Our earth is facing a serious problem of light pollution.
Our earth is facing a serious problem of light pollution.

Challenges On Technical Indicators

The Led’s performance depends largely on the relevant design of fixed devices to manage its generated heat, which might affect the quality of LED chips. Nevertheless, providing the appropriate light voltage is also a problem, as the light only works optimally with the right voltage and constant current. This requires manufacturers to have experts in designing the electronic drivers for their products. Yet, this technical issue remains a tough challenge due to the development of low-cost LED manufacturers in Asia.


The above five disadvantages of LED light are the biggest challenges for lighting manufacturers to constantly improve their technology and product quality for modern, durable, and economical lighting. 

Even with such disadvantages and challenges, it is still a popular and great option in the modern world due to its superiority over other light options. Try one for yourself and see if it satisfies you!