H4 LED bulbs have the most problems because of their more complex design. Half of them can be identified only after purchase. Here are some disadvantages that I have noticed. The light output goes down, the distance illuminated is reduced by 2 times; poor assembly, as a consequence of poor heat dissipation and overheating of the LED and its blinking; different light direction, there were samples in which the diodes are not installed evenly, during tests of the light and shadow line lamps shone differently; lamp overheating due to ill-thought cooling or because there is no fan. It is better to use LEDs as decoration inside the salon, such as
Vont. Also, LEDs have inflated brightness. Chinese marketing writes huge numbers to buy a named LED, but not xenon.
