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The Signal Driver boards can be powered from the +12VDC output on your DIO boards - thus no additional power supplies are needed. The FL2 provides flashing capability (at adjustable rates) for signals and crossing flashers. The SD2 provides searchlight signal drive capability for 2-lead LED signals and incorporates adjustable yellow balance.

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FL2 (Dual Signal Flasher Unit)

• Powered by 12VDC (from DIO Card)
• 5VDC Logic Inputs (from DIO Card)
• 5VDC Pulsing Output, 0.75 second ON/OFF (adjustable)
• Can drive Crossing flasher (no series resistor required)
• Can drive railroad signals directly (+5V pulse output)

Price: $40.00
S&H: $3.00

SD2 (Dual Searchlight Signal Drivers)

• For 2-Lead Bi-Color LED Signals ONLY
• Powered by 12VDC (from DIO Card)
• 5VDC Logic Inputs (from DIO Card)
• Adjustable Color Balance
• No Series Resistors Required

Price: $40.00
S&H: $3.00