UL 认证
UL 和 ETL 有什么区别？
都是 OSHA 认可的国家测试实验室（NRTL）。两者依据相同的 UL 标准测试。ETL（Intertek）通常更快、便宜 20-30%。UL Solutions 在消费者中品牌认知度更高。两个标志美国零售商都接受。
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What's the difference between UL and ETL?
Both are Nationally Recognized Testing Labs (NRTLs) accredited by OSHA. They test against the same UL standards. ETL (Intertek) is typically faster and 20-30% cheaper. UL Solutions has stronger brand recognition with consumers. Either mark is accepted by US retailers.
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