Can I run halogen headlights with a Classic Update kit? Will I need a headlight enhancement kit to do so?

Even a 4-headlight system that is utilizing standard type halogen lamps should be OK with any of our kits providing that you have utilized our dimmer and lamp switches. The current draw on a standard set of 4 halogen bulbs is about 13 amps. With our dual power feeds to the headlight switch, the main circuit breaker is only carrying the load of the headlights themselves, and that breaker and circuit will carry 13 or 14 amps with no problem whatsoever. If you are talking about some other type of hi output lamps, simply calculate the amperage output. If the total current draw is more than about 15-18 amps, an enhancement system may be in order.