Includes:
* PL7R 7 1/2" High-Gain Reflector
* C4-15C Color Corrected Flash Tube
* ESS 250-Watt Quartz Lamp
* PLLC AC Power Cord
* PLTC Powerlight Sync Cord
* PLFTP Flash Tube Protector

Features:
* Constant Color technology
* 8 f-stop flash power range: 500~4Ws
* Color-corrected flash tube
* Consistent flash output ±0.05 f-stop
* Digital flash power display
* Auto bracketing function
* Flash and modeling output adjustments in 1/10 or 1/2 f-stop increments
* 250W modeling lamp
* Digital modeling power display
* Proportional, full on/off, or manual modeling lamp settings
* Audible ready and misfire announcement
* Ready light
* Auto power discharge (flash dump)
* Self-diagnostic display
* Photo slave
* Safe, low 5-volt sync voltage
* Heavy-duty 1/4" sync socket
* Test-fire button
* Surge protection
* Internal thermal protection
* Extruded aluminum housing
* Works with Quick-Change light shaping accessories

Specifications:
* Flash Power: 3.9 to 500 watt-seconds
* Guide Number (ISO100@10ft.): 365 w/PL7R reflector; 110 w/no reflector
* Flash Duration: 1/280 second at full power; 1/5800 second at 1/128 power
* Recycle Time: 1.5 sec. at full power; 0.5 sec. at 1/128 power
* Power Control: Range: Full to 1/128 power (8 f-stops); 0.1 f-stop resolution
* Flash Temperature: < ± 50K from full to 1/32 power < ± 100K from full to 1/128 power
* Modeling Light Power: 250 watt Quartz, ESS
* Modeling Light Control: Range: Full to 1/128 power (8 f-stops); 0.1 f-stop resolution
* Triggering: Sync jack (5 volts); Push-to-test button; Built-in photo slave
* Sync Voltage: 5V
* Main Supply: 105 - 125 Vac, 60 Hz, 10 amps
* Consumption: 0.2 amps idling, 15 amps charging
* Voltage Stabilization: ± 0.05 f-stop
* Fuse: 3AG type 15 amp, SLO-BLO
* Housing: Extruded aluminum
* Dimensions (housing only): 4.5" x 4.5" x 6.75"
* Flash Tube: User replaceable.
* Use only Photogenic C4-15, C4-15C (color-corrected), C4-15F (frosted) or C4-15D (frosted and color-corrected)
* Modeling Lamp: 250 watt quartz halogen, ESS, 150 watt quartz halogen, ESP, 100 watt quartz halogen, ESR