Manufacturer: Simran. It will step Up single phase 110V/120V to 220V/240V single phase, OR Step Down 220V/240V to 110V/120V. It has an ON/OFF switch with an indicator lamp. There are six outlets on front of the unit - two outlet for 110V/120V and four outlets for 220V/240V.
I have have this converted transformer for about a year and 3 month , i have used it may be 10-15 times . The power outlet broke down-no power , and then second outlet broke down , no power . Wrote a letter to support- no answer. Do not wast your money. Better buy a different brand with better quality, i do owe another one for over 7 years, works just fine.