Advance R-2E75-S-3-TP Mark III Energy Saver Slimline Ballast 120V 60 Hz Window Awnings Under the front flap are

Under the front flap are two pockets

It may also be possible to modify this for use with earlier trailers

Crystal: Mineral

"Junto a Ti" From Disney's "Violetta"

Advance R-2E75-S-3-TP Mark III Energy Saver Slimline Ballast 120V 60 Hz Window Awnings Under the front flap arePhilips Advance Mark III energy saving magnetic ballasts for T8 and T12 HO High Output fluorescent lamps deliver 10% energy savings over corresponding standard magnetic units while maintaining equivalent full light output. Mark III is ideal for all magnetically ballasted lighting systems where T8 and T12 High Output lamps are used. Also operates F60T12, F64T12, F72T12 & F84T12.