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780–1228 NEOBE® &
  780-1228 Preemption
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Preemption Power Supply


The model 780–1228–PRE is TOMAR’s newest and most advanced NEOBE®/Preemption power supply. The 780–1228–PRE provides all the warning power and reliability of our NEOBE® technology plus the crystal–locked timing accuracy necessary to generate both industry standard high and low priority preemption signals. The 780–1228–PRE can power 2 or 4 TOMAR lightheads. Operating features include: 12–28VDC operation, high-low intensity, polarity protection, RFI filters, NEOBE®, HYPER-NEOBE®, and low/high priority preemption flash rates, plus a parking brake override feature to prevent intersection lock-up at the scene of an emergency. The 780–1228–PRE is potted for protection from weather and vibration and it is covered by an extended 10 year warranty, making the 780–1228–PRE the most reliable preemption power supply available. The power supply is constructed with a glass filled Lexan® case and polyurethane potting.


Model No. Description
780–1228-PRE Optical preemption power supply, 12–28VDC
780–1228-PRE–WP (Same as above except with Waterproof connectors)


Item Description
Power Requirements Draws 6.0 A avg. @12.8VDC tapering to 3.0 A avg. @25.6VDC
Output Power Rating 65 Watts minimum in High Intensity
NEOBE Flash Rate
Flash Rate 660 MFPM/Head-NEOBE
Plus High and Low Priority Preemption Frequencies
Flash Pattern 5 equal power flashes per burst
** NOTE: The Preemption signal is generated by a minimum of 2 alternating lightheads.
Control Features On-Off and all features are controlled by switching positive, low current battery voltage. The main battery power may be left connected to the supply at all times. Current draw is less than 100 microamps in standby.
Size 7.125”(181mm) x 3.75”(95mm) x 2.50” (64mm)
Weight 3.5lbs (1.56kg.)
Warranty Ten year warranty