Comet CBm-1200 1200 Watt/Second Battery Operated Power Supply with Battery and Charger

B&H # COBPS1200 MFR # CBM-1200
Comet CBm-1200 1200 W/S Power Supply, Battery, Charger


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The Comet CBm-1200 battery operated professional 1200 watt/second strobe power supply is for the photographer who works on location, and in the studio. It is small and lightweight, has short flash duration for stopping action, quick recycling time, constant color temperature pop after pop, and a wide power range.

This power pack can supply each of 2 Comet heads (available separately) with power symmetrically, or asymmetrically. It will power 2- 300 watt modeling lights for 8 seconds at a time, during use. The CBm comes with one NiMH battery; a second battery may be purchased to shorten recycle time, and increase the number of pops per charge. The included charger is multi-voltage.

Two Head Outlets
This pack accepts any Comet CB or CX Flash Head.
Asymmetrical Power Distribution
Switch between equal distribution (600-600 w/s) of power, to asymmetrical (800-400 w/s), when powering 2 heads.
Wide Power Range
Power down from full to to minus 6.5 f-stops - 1200 to 12 w/s in 1/32 or 1/6 stop increments.
Short Flash Duration
Stop most movement with 1/1450 second flash duration (at minimum power).
Multi-Voltage Charger
100-240 Volt AC charger replenishes each of the 24 volt/2800mA nickel-metal hydride batteries in ~2 hours (one at a time).
One, or Two Battery Use
Increase number of full power pops to 150 from 60, by purchasing a second battery, and inserting it into the chamber at the bottom of the pack.
Sync Cord
Mono Plug to PC sync cord is available separately.
Maximum Watt/Seconds 1200
Guide Number Depends on head and reflector in use
Recycle Time 2.8 sec, with 1 battery
5 sec with 2 batteries, @ full power, fully charged
Flash Duration 1/1450 sec @ min power, 2 heads
1/270 sec @ full power, 1 head
Flash Variability 1200-12 w/s, 6.5 f-stops in 1/6 or 1/32 increments
Voltage Stabilization Yes, +/- 1%
Distribution Asymmetrical or Symmetrical
Head Outlets 2
Flash Ready Indicator Switchable Visual and Audible
Operating Voltage 24 Volts, 2800mA x 1 or 2
Sync Voltage 12V DC
Built-in Slave Cell Yes, switchable
Circuit Protection 20A fuse x 2, 3A for modeling light
Fan Cooled No
Auto Dump Not specified by manufacturer
Number of Flashes @ Full Power 60 with 1 battery
150 with 2nd, optional battery
Battery Charge Time 2 hours
Dimensions 8.3 x 6.6 x 8.7" (21 x 16.7 x 22.2 cm)
Weight 10.1 lb (4.8 kg)
Packaging Info
Package Weight 24.0 lb
Box Dimensions (LxWxH) 16.0 x 14.0 x 10.0"
Comet CBm-1200 1200 Watt/Second Battery Operated Power Supply with Battery and Charger
  • NB-2428 NiMH Battery
  • NCD-24 Battery Charger
  • 1 Year Manufacturer's Warranty
  • Note: Sync Cord not included

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