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Review Summary
Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.
Browse our FAQ
1
None
Non-TTL
400 W/s
1/900 Sec (Full Power)
170
1/3 to 3 Sec
No
Yes
Yes
2.5 Hours
9 to 12 VDC (Sync)
None
No
Required, included
-
Non universal
1
10.5 x 5.2 x 3.2" (26.6 x 13.3 x 8.2cm)
6 lbs (2.7kg)
689670173988


The Norman P400B is a 400 w-s battery-operated flash power supply that is generally sold with the A400B or A400B-M assembly. It accepts Norman Series 500 lampheads including the LH52K with 5' coil cord (standard) and LH52K-M with modeling lamp circuit.
Norman believes that the P400B is the highest quality 400 w-s flash power supply on today's market. Its all-aluminum housing is rugged and compact and it can be worn either over-the-shoulder or around the waist. Optional for the P400B is a high-quality R4107 shoulder strap with contour pad that hugs the shoulder. Remove the pad and the strap ends hook together to hang the pack on a stand or on a door knob. The optional R4122 leather belt is used to wear the P400B around the waist.
The unit features four power levels, quick recycling, voltage stabilized output, heavy-duty industrial lamphead connector and a low-battery light that warns the photographer when about 10 full power flashes are remaining. It accepts two of our new B5122 Super Battery which boosts the number of flashes from the P400B by about 25%. The new C55x2 "Delta V" Battery Charger is required to provide added battery life and performance. (Batteries and charger not included with P400B, unless ordered as a complete assembly; A400B and A400B-M.