12 Volt 920 Wedge LED Bulb for Brake Light
Upgrade your bulbs to LED. This bulb will replace the standard brake light bulb on the Vespa GTS/GTV/Super 300. The LED bulb will last longer and draws a fraction of the power that a regular bulb draws. That will leave you more power for accessories and stress your battery less.
See video below on how to upgrade to LEDs in under 5 minutes!