ACME: Picked up the call from consumers who want a product that meets their expectations but aren't ready to break the bank. Their entry-level gear is the new industry standard that delivers real performance at the right price. Gen II: The success of the SpeedyStart has brought on a multitude of updates for the new version, turning something that was already good into something even better. They're smaller, more efficient, more reliable, and look cooler than ever! Speedy Gonzales: Has nothin' on the ACME SpeedyStart 35w ballasts when it comes to warm up time. These go zero to full intensity in just 3.5 seconds! So good in fact that we've discontinued the old "FastBright" ballasts in their favor. Safe: Their external igniters and high voltage wiring is shielded to help mitigate EMI interference (radio static) so it's unlikely that these ballasts will disturb your afternoon rock block! Setup: Though light on their feet and drawing just 5A on start up, we highly recommend powering the SpeedyStarts with an HD Relay wire harness to ensure performance and longevity. AMP Only: The SpeedyStart is only available with AMP Male/Female outputs, but can easily be used with D2S bulbs with some AMP>D2S Adapters.