GSP296 Lumenition Electronic Ignition The Standard Optronic system, ideal for all road and classic cars as well as boats. You will also require a fitting kit to secure the optical switch in to the top of your distributor, these are sold separately. FEATURES: - Contactless operation. - High power output transistor for fast and accurate switching of the coil. - Fixed dwell give higher performance from existing coil under all conditions. - Fully compatible with Lumenition Rev Limiters for complete engine protection.