We　used　two　types　of　1-W　white　LEDs,　both　of　which　had　the　structure　of　GaN　chip　with　phosphor　covered　and　packaged　in　metal　PCB　boards　with　laminated　aluminum.　Of　the　two　types　of　packaging　lens,　one　is　made　of　hard　silica　gel,　and　the　other　is　made　of　soft　plastic.　The　purpose　of　this　paper　is　to　analyze　the　aging　characters　of　high-power　white　LEDs　under　stresses.　In　accelerated　life　tests,　the　two　types　of　white　LEDs　were　treated　with　high　temperature　and　D　C　current　distinctively.　The　tendencies　of　the　decay　of　luminous　flux　in　the　two　conditions　were　basically　the　same,　while　the　changing　trends　of　the　color　temperature　were　different.　The　hard　silica　gel　had　better　stability.　©2009　SPIE-OSA-IEEE.