magicasd

hi, i'm given a project assignment of building a supercapacitor which can store roughly 700V to 1000V. Now i'm designing a circuit (discharging) which can help me light up a few LEDs using Voltage charge stored in the supercapacitor. The purpose of the circuit is to show that the supercapacitor can Light up the LEDS for a certain period of time.. I would like to know how to design a circuit which can control the rate of discharge of the supercapacitor. what are the components required to step down and control the high voltage in order not to destroy the LEDs...