The Pentax TR Power Pack III is an external power pack for the AF-540 FGZ flash. It runs on six "C" cell batteries, and will significantly increase the flash capacity and decrease the recycling time of the flash.

Pentax 37225 Specs

Power Source	6 "C" batteries (NiCD not compatible)
Recycling Time	4.5 Seconds (at full power)
Number of Flashes	Approx. 700
Dimensions	3.7 x 7.5 x 1.6" (95 x 190 x 40mm)
Weight	12 oz (340 g) [w/o batteries] 1.6 lb (740 g) [with batteries]

Packaging Info

Package Weight	0.8 lb
Box Dimensions (LxWxH)	9 x 6.3 x 2.1"

Pentax 37225 Reviews

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Pentax TR Power Pack III

Pentax 37225 Overview

Pentax 37225 Specs

Pentax 37225 Reviews

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