TETHRA SYSTEMS

Lighting Battery Sizer · DEMO

Fixture Library

Wattage = maximum AC draw (HMI = ballast input VA). Click a fixture to add it to your rig.

Your Lighting Rig

0 fixtures
Battery scope

Concept of Operations

shoot parameters
h

Advanced assumptions

efficiency · DoD · inrush
%
%

Strike inrush × per fixture type drives the surge requirement (worst single fixture). LED ≈1×; electronic HMI ballasts ~2× (older magnetic 4–8×); cold tungsten 10–15× for ~100 ms.

Fixture type in rigInrush ×

Tethra Systems · demonstration prototype. Planning estimates only — verify against a true-RMS power analyzer on the actual fixture package before committing a rental.