Major shortcomings are as follows

 Major shortcomings are as follows:

  LED Downlight

First, the luminous efficiency is not high enough: At present, although the level of laboratory power white LED luminous efficiency has more than 100lm / W, but mass production, cost-effective high power white LED luminous efficiency is still 60lm / W, the energy saving advantage has not been fully realized.

LED Strip

Second, the LED light reflection face low: Since the spectral characteristics of the white LED, road construction and low reflectance objects surrounding them, so the surface brightness is low, compared with the sodium yellow light, which is one of its weakness.

GU10

High-power white LED light-emitting efficiency is still currently about 70lm / W ~ 80lm / W stage theory its luminous efficiency can reach 300lm / W or so, so technically there is a very large space for development.