Bright LED lights with a lighter LED lead heated to 200-300 ° C, remove the lighter 3-volt button cell batteries according to the positive and negative connections to the motorcycle led light, If the LED lights lit, but with the lead temperature is reduced LED lights change from bright to light, which prove that the LED lights Weld. Heating the light of reason is the use of metal expansion and contraction of the principle of expansion elongation when the heating of the LED lead and the internal solder joints connected to power at this time, the LED will be able to normal light-emitting led high bay light lead shrink with decreasing temperature Reply to room temperature, disconnect the internal solder joints on the point of the LED lamp is not lit, this method really try to be efficacious.
Weld the dead lights lead solder on a metal, doctrinal and soaked in the sulfuric acid, so that the LED external colloid dissolved, colloidal dissolved and after the remove, under the magnifying glass or microscope to observe the welding of each solder joint, can find a welding or welding.
Use LED products, the user will encounter the phenomenon of dead lights, LED products used for some time after the occurrence of the phenomenon of dead lights, dead lights, there are two reasons, the open nature dead light welding quality, or stent the quality of the plating LED chip leakage current will cause the motorcycle led light does not shine. Now a lot of LED products in order to reduce costs did not increase the anti-static protection.