TY - JOUR T1 - Failure Analysis of Some Commercial Spotlights Based on Light Emitting Diodes JO - Electronics PY - 2022/01/01 AU - Zhong W AU - Walther T ED - DO - DOI: 10.3390/electronics11010048 PB - MDPI AG VL - 11 IS - 1 SP - 48 EP - 48 Y2 - 2025/05/16 ER -