A range of PSUs are available:
Compact AC /DC PSU with autosensing for voltages from 100VAC to 256VAC 47Hz – 63Hz.
Advanced AC and DC input PSU with autosensing and optional rechargeable NiMH back-up battery with automatic switch-over at the loss of external power source(s). This battery-pack is providing 3 hours of operation to the HD150-ISF lamp or 9 hours of operation to the HD50-M lamp. Internal DC/DC converter is securing stable and constant 36VDC supply to the lamp during the gradual discharge of the back-up battery. There are no IATA restrictions on the NiMH battery chemistry. Larger or smaller battery-packs can be provided upon request.
Alternatively, the 2590 military (NATO) type battery providing similar hours of operation may be implemented. This is a Li-Ion type of battery which is IATA restricted in civilian air transportation.
Universal power supply with rechargeable NiMH battery pack