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Do you have a trick to light a single charcoal briquette? It takes 1 match to start a forest fire, 300 matches to light a barbeque...
You don't need this. You can just add a fan, or reduce the secondary windings & add a 3rd transformer in series.
Drop the turn on each transformer secondary, & then add a 3rd transformer in series.
This is good voltage, but osha considers voltage above 40 to be a shock risk so its best to remove some turns & get them under the 40 mark.
Mine looks like its 12 gauge aluminum, but it could be 15 gauge aluminum.
Mod Podge is water proof (ish) when it dries (it dries clear), but school glue will quickly dissolve if it gets wet. If you use titebond 2 instead of white glue, you will have a food and water safe bond (though a little yellow). modpodge is the one to use if you need a clear drying and water resistant glue.