Suitable for direct connection to heating and incandescent light, limited use on LED lighting, reduced life with CFLand inverter tye lighting. Poor starting and noisy on strip fluorescents, avoid direct use on PCs, laptops and mobile phone chargers. For these use a transformer, rectify and filter, they will run on DC
Very suitable for transformer battery chargers, we using a transformer type interface, battery charger, battery and generate your ac from a sin wave inverter. For fridge starting use a high VA rated inverter.