9382 Small Model I.C. Sparks Animated Lighted Sign by Miller Signs Suitable for N scale & HO scale, 2.5" w x 1.9" t, Limited edition sign The sign comes with a circuit board and AAA battery box, simple to install on your structure on the curcuit board there is a on/off switch and a push button to change the sequence, has over 40 sequences may also be lighted with a 4804 converter or 4803 or 4803 adapter