Self ballasted fluorescent lamp ballast, starter with a full set of control circuit, and installed in the Edison ( Edison ) spiral lamp holder or a bayonet lamp holder.

自镇流荧光灯自带镇流器、启动器等全套控制电路，并装在有爱迪生（Edison）螺旋灯头或插口式灯头。

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The holder start in a locked vertical position, and to attach a lens you just bayonet it into place, securing the glass and allowing the holder to be lowered.

ENGADGET: Insert Coin: Quikdraw targets lens fumblers and multiple camera packers (video)