Luxcore Ballast not firing up Spectra

Hi - I have the Luxcore ballast (250/400) and am hooking it up to a 24" Spectra with a 250 Radium bulb. I wired the luxcore ballast so that the white wire is opposite the brown, the black wire opposite the blue, and the green wire opposite the green/yellow. The bulb does not ignite. I tried a backup bulb and nothing. Do you have an image of the inside of the white plastic connectors between the ballast and the Spectra so I can see if I have wired it correctly?