LED Headlight heat dissipation
When it comes to LED bulbs, it is inevitable to talk about heat dissipation. As it is known to all, favourable heat dissipation effect can make sure the LED bulbs are bright enough and extend their service life. To reach a favorable heat dissipation effect in the limited space that LED bulbs live in, that means the maximum junction temperature of LED bulb should be lower than 80 ° C under the temperature of 50 ° C, which is a standard level. Generally the power of car low beam and high beam would be between 40W to 60W, and it would be 80W and even higher of high-end automobile. What’s more, LED chip can change electricity into light, but only 30% of energy can make it and the other 70% turns into heat. Meanwhile, width lamp and turn light work together with them. With heat emitting from all these lights, it is difficult to lower the junction temperature. High junction temperature must bring about short service life. The following picture is about the relationship between junction t