Unverified75% confidenceTradeoffTime unknown
防水等级越高的封装（如IP67全包边）往往牺牲散热，长期高温暴晒下反而降低发电效率并加速衰减；日常晴天使用IP65喷淋级足够，无需为极端防水多花钱
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75%
Confidence
Long-term
Relevance
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UnverifiedIP65全密封防水灯具散热较差、灯珠寿命可能受影响，干区或普通洗手台无需盲目追求高防水等级85% similarUnverifiedIP防水等级越高密封越好但散热越差：全密封IP66型号长期带载易积热降寿命，个护低功率场景IP44已足够，无需盲目追求高IP导致散热隐患85% similarUnverifiedIP66防水等级能应对雨天和汗水，但非潜水级防护，不适合涉水或极端暴雨长时间暴露84% similarUnverified防水等级越高（IP67）密封盖越厚重、开合越不便，日常频繁插拔的场景（如户外充电、园艺工具）用IP55带翻盖设计更实用，IP67适合长期插着不动的固定用电84% similarUnverified防水等级越高越耐雨淋但接口密封会牺牲散热和插拔便利，多数便携折叠板标称IP65仅指太阳能面板本身防水，接口盒（USB/DC输出口）往往不防水，下雨时必须遮盖接口，不能整体泡水83% similar
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