This International Standard specifies performance requirements for electronic step-down convertors for use on d.c. supplies up to 250 V and a.c. supplies up to 1 000 V at 50 Hz or 60 Hz with operating frequencies deviating from the supply frequency, associated with tungsten halogen lamps as specified in IEC 60357 and other filament lamps.

Test Requirement 测试要求：

标志
电源电流
耐久性
声频下的阻抗
输出电压和电流
线路功率因数
线路总功率
异常状态条件下的工作试验

Sample Size 样品数量 / 送样规格: 6pcs
Lead Time / TAT (Turn Around Time) 测试周期: 常规服务 Regular service 7-9 working days

Report Summary 报告摘要: