Test device for testing compact fluorescent lights and ballasts

A test device for testing a circuit for operating a compact fluorescent light, the device having first and second terminals for connecting the compact fluorescent light to an ac-power source including first and second ac-power lines, and a ballast in said ac-power source, comprising first and second conducting paths respectively connecting said first and second terminals with said first and second ac-power lines, a known good fluorescent test light connected between said first and second conducting paths at said first and second terminals, the test device having current indicating means in said second conducting path for testing presence of electric current in said second conducting path, and voltage indicating means for indicating presence of voltage between said first and second conducting path, a first make switch in said first conducting path operative for connecting said voltage indicating means with said second conducting path, a second make switch in said second conducting path operative for shorting said current indicating means, a current-limiting capacitor in said first conducting path disposed between said first make switch and said test light, detachable connecting means for detachably connecting said test device between said compact fluorescent test light and said ac-power source, a test device housing having receiving means for receiving said compact fluorescent test light, and releasable plug-in means for releasably plugging-in said test device into said ac-power source.