Description:Operating voltage: 12VDashboard size: 5.4 * 3.1CMLight board size: 3.5 * 2.6CMFlashing Mode Strobe Kit:( flicker frequency is adjustable)Flash 2 times left and right flash 2 times, all bright 1 timeStrobe Kit , a control panel plus three light board (highlighted in red , highlighted white and highlighted blue) Package included:3 x DIY CD4017+ne555 Strobe Module Electronics Learning KitIf you have any questions, please contact us immediately by email and we will get back to you as soon as we receive your email.