... worldwide clients' markets. LED tube power meter,LED tester,Power meter,Demo boxLT-AC11021,Input voltage : AC ... lamp or other lamps without ballast inside the meter, the input voltage should be AC 100V-250V ... 7, LOAD1 and LOAD2 have E27 base and multi-use sockets. It could test any bulbs or ... .11,Compact size, small volume, very light , convenient to carry Best after sales-servicesWith 1 year warranty ...