ELO Electronic Flasher w/ Lamp Outage Detection carries 4 x 21W + 3W on directional lights, and 10 x 21W + 2 x 3W on hazard lights. It is designed for vehicles with seperate pilot lamp for each direction (double pilot lamp). If one of the bulbs are malfunctioning or in case of a bulb lower than 21W, the flasher has the ability to warn the driver with an increased speed while functioning. All 3 Terminals of the flasher (+, L, - ) are 6,3 mm. plug-in terminals. 

Click Technical Specs for more information on ELO Electronic Flasher w/ Lamp Outage Detection 12V ( +, L, - ).