Circuitron Alternating Flasher Circuit Board Only — FL-2

The CIRCUITRON FL-2 is designed to be controlled by the output from one of our Grade Crossing Detection circuits. The FL-2 may also be easily wired for continuous flashing or for manual control with a panel switch, if desired. Only one FL-2 is needed per road crossing regardless of the number of tracks (each with their own Detection circuit) at the crossing. The FL-2 will power incandescent lamps or Light Emitting Diodes (with proper current limiting resistors). The maximum load that may be applied to each output is 250 ma. This is sufficient to flash 3 or 4 standard grain of wheat lamps or 10 – 15 LEDs per side. The current draw of grain of wheat lamps varies widely from one manufacturer to the next. Typically, they will be in the 50-75 ma. per bulb range. If you are not sure, check them with an ammeter. The outputs of the FL-2 are not protected against over-current or short circuit conditions, and connecting too many lamps to the outputs will likely damage the circuit. This is not covered by warranty. The FL-2 is constructed on a 1.5? x 3? printed circuit board.