Power Sources Flashcards
1
Q
Highest wattage light run on battery
A
1200w HMI
2
Q
Three types of batteries
A
Nickel cadmium (Ni-Cad) Nickel hydride (NiMH) Lithium ion (Li-ion)
3
Q
Memory effect, and which batteries display it?
A
Voltage depression, seen in NiCad and NiMH, not Li-ion
4
Q
Typical voltages of belt and block batteries
A
12, 24, 30
5
Q
Which lights require 30 V batteries
A
HMI Pocket pars, jokerbug, cinespace
6
Q
What voltage does arri ac/dc 575/1200 ballast
A
24V DC for 575w
Or 48-60 c for 1200w
7
Q
Lithium-ion
A
More power Less weight Faster charging speed No memory Good cold-weather
