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ProTwin
10.15.18 Glass Cover, frosted, UV-coated (standard)
10.15.19 Glass Cover, frosted, extra UV-coated, -300° Kelvin
10.15.20 Glass Cover, frosted, uncoated + 300° Kelvin
10.15.21 Glass Cover, clear, UV-coated
10.15.23 Glass Cover, clear, uncoated + 300° Kelvin
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The ProTwin is used to obtain extremely short flash duration,
very quick recycling or to get 4800 Ws out of one single
head. There are two flash tubes in a ProTwin. As the flash
duration is shorter at low power settings, and as only half of the
desired power is used in each tube, consequently shorter
flash duration is obtained. For example if you need 1200
Ws, you fire 600 Ws from each tube, and your flash duration
is shorter than if a standard ProHead is used. The flash dura-
tion at 1200 Ws with a ProHead is 1/2200 while it is only
1/3200 with a ProTwin. One or two generators can be used.
If, on the contrary, you require 4800Ws from one head you
connect ProTwin to two Pro-7/2400 generators. For the
same reason shorter recycling times is obtained when two
generators are used, as the recycling is faster when the gen-
erators in fact only need to recharge half the energy.
Flash duration and recycling for a ProTwin at a certain power
setting - for example 1200 Ws - compares with a ProHead
set at 600 Ws.
The modelling light is turned on and off with the black switch
[1] at the back of the head. The fan is controlled by a built-in
thermostat, which can be disconnected with the blue switch
[2] after which the fan operates continuously.
Please note that when changing modelling light, flash tube
1
2