(Switch source below) Installing a lighted rocker switch for the inverter on my Simplicity. The problem with the non lighted switch is that you can actually leave the inverter on even though the battery indicator is off. The inverter draws so much power at idle that you can drain you battery quickly if you are not aware you have left it on. The switch is available below for about $5 but since shipping is $10 for several switches I suggest you buy the three pack ($10.66) instead just to have spares. There is also different colors if you wish.
https://www.rvupgradestore.com/SPST-I...
https://www.rvupgradestore.com/3-Pack...