The highly reflective silver base produces an even edge to edge distribution of light. Air vents have been positioned on the top and bottom in order to allow air to circulate when in use.
With both diffusers in place a maximum light loss of only 1.2 f-stops is achieved. Alternatively, you can remove the internal diffuser for additional versatility; the light is focused in the centre of the box with light dissipated towards the outside edge. The front recessed diffuser can also be removed to increase contrast which also creates a pleasing centre weighted effect in portraits. The boxes also feature Velcro on the outside edge to support Interfit Pro accessories such as masks etc.
A head and power pack kit consists of the flash head and a small power pack that acts as the generator that supplies energy to the flash head. The flash head contains flash tubes that emit light once supplied with high voltages.
Having all the controls on the power pack makes it easier to change the settings of multiple flash heads in one place quickly. Monolights come with the controls built directly into the light itself. So if you have multiple monolights, you'll need to control and adjust the settings of each one separately. Head/power pack kits also offer faster flash durations than monolights, which can really come in handy when you want to freeze action during fast motion. They also have faster recycle times.
If you're shooting outdoors or with complicated modifier setups, you are going to need a lot of power to overcome the sun or the light loss caused by the modifiers. Head/pack systems have a big advantage in the power department. Whereas, if you're shooting indoors or inside your studio, monolights will probably be more than enough for regular work.
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