R&D problems of LED lights
1. High heat dissipation requirements
In the case of poor heat dissipation, the life of the LED will be greatly reduced.
2. High initial cost
LED prices are high, although the long-term cost may be lower, but the higher initial cost reduces the penetration rate of LEDs.
3. Color rendering needs to be strengthened
The important reason why fluorescent lamps cannot completely replace incandescent lamps is that fluorescent lamps have poor color rendering properties (incandescent lamps have a continuous and smooth spectrum, and the color rendering properties are close to 100. This kind of light is also healthier and eye-friendly; there are many other artificial light sources. It belongs to the emission spectrum and is difficult to replace incandescent lamps and sunlight). The color rendering of low- and mid-level LEDs is even lower than that of fluorescent lamps.
4. Efficiency still needs to be strengthened
LEDs are extremely efficient at low luminosity, but when the power LED lights increase, the efficiency is not so good, especially for low-end high-power LED lighting, the efficiency is still not as good as T5 tubes.
5. Large production error
In the same batch of LEDs, the characteristics (brightness, color, bias... etc.) of each LED are also quite different, and various LEDs must be separated at considerable cost.
6. Development of design concept
There are two design concepts for LED lamps: one is the scene lighting proposed by Philips in 2008. The other is the mood lighting proposed by Casio in 2009.
