Product Description The LS9955/LS9956 Automatic Safety Test System (electrical safety analyzer) combined the following function in one set: Withstand Voltage Test (AC/DC), Insulation Resistance Test (IR), Leakage Current Test (LLC), Grounding Resistance Test (GR) and Power Test. The LS9955/LS9956 Automatic Safety Test System is according to GB4706.1, IEC/EN60335-1, UL60335, GB7000, IEC60598, GB4943, IEC60950 and GB9706.1. It is used for luminaries, home application and motor tools safety test in production line or R&D Lab. Specification: Remote control device and can control by software (Optional) Display all setting parameters and testing results in the same big LCD menu PASS/FAIL limit values can be set. It has alarm sound and indicator light Test mode programmable; 50 groups setting available, 8 test steps per group Quick discharge. Support 50Hz and 60Hz frequency; Electric safety wall detecting feature �¢?�¢ The LS9955 can do test for Withstand Voltage (AC/DC), Insulation Resistance (IR), Leakage Current (LLC) and Ground Resistance (GR) The LS9956 can test for Withstand Voltage (AC/DC), Insulation Resistance (IR), Leakage Current (LLC), Ground Resistance (GR) and Power