The lsp 1601 from voltcraft features highly developed switched mode power supply technology and has an efficiency rating of 85 this 100 watt portable power supplys slimline lightweight design 2kg means it consumes little space in workshops or labs and can be easily transportedthe lsp 1601 features a convenient backlit 4 digit lcd display ovp over voltage protection is intergrated on the outputs offering protection for sensitive consumers from potentially harmful voltage spikes