530 - SS ELECTRONIC FLASHER This Unit was designed to operate 3 X 24V 21W Bulbs and a maximum of 6 in Hazard Mode. The Lamp overload feature reduces the flash rate to 1 operation every 4 seconds if the total load exceeds 6.5 bulbs. The flash rate increases in frequency if only 1 X 21W bulb is connected and the ‘S’ Terminal is unconnected. If 3 Lamps are connected and the ‘S’ Terminal is connected to zero volts (- 0V) the flash rate will increase when only 2 bulbs remain connected. With the ‘S’ terminal unconnected, the ‘P’ Terminal will operate when 2 bulbs are connected. When the ‘S’ Terminal is connected to zero volts (- 0V), the ‘P’ Terminal operates when 3 lamps are connected. The Unit is available in a choice of 2 Case styles: - 530-DIN and 530-SS