I've started building my EL saber with parts ordered from TCSS, and have run into a few problems. I didnt get a nut with the mono female jack and im not sure how to attach it to the metal sink pipe to blade converter thing. Also, i have the battery, inverter, switch all connected correctly ( i think) but i decided against an LED in the hilt. Do i need a resistor? also, would converting from 9v into 18v make it brighter or just last longer? thanks