• LED driving current up to 500mA • Operating input voltage up to 48V • High efficiency up to 92%• High switching frequency up to 500kHz • PWM/DC input for dimming control • Built-in output open
上海高中辅导英语时态练习1. Feeling the car stolen, _____________________.A. a policeman was asked to helpB. the area was arched thoroughlyC. it was looked for everywhereD. she hurried to a policeman for help2.