Non standard 9w PL-S lamp

Here you see one of the four lamps from the wife's old nail gel curer. I assumed the unit must have magnetic ballasts in seeing as it took these 2-pin 9w PL-S lamps, but powering it up revealed that the tubes instant started with no signs of the normal glow bottle start. I also found the unit had no weight to it & when I opened it up I found it just had a small circuit board with CFL style circuitry.

As you can see here the lamp does not have a glow bottle but just a capacitor across the cathodes where the starter would normally be.