$ = Light (like a sun rising when on think rays) and without the rays when off
% = heaters Up arrow when on, down arrow when off
# = For flow... I forget the symbol(s) that are used here though.
& = Miscelaneous square Solid box when on, box with hole in it when off
Order is not important, and it's a 24:00 cycle...
So what you have there is the light will be on between Noon at 1:30 AM (13.5 hour light cycle)
Exatcly (note you need other devices like your router, etc to be on a power supply as well for this to function properly.
Dave