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Frequently Asked Questions
Q: What power of flash units can I connect to Flash Feeder Compact?
Q: How many flash units can I connect at the same time?
Q:
What is the difference between Flash Feeder Compact and studio type battery flash units already available on the market?
Q:
Why can I not use low cost inverters already available on the market?
Q:
Is there any advantage in using Flash Feeder Compact instead of an electrical gasoline generator?
Q:
What will be the recycling speed of the flash unit during the whole session until the battery is discharged?
Q: Is it Possible to use a modeling lamp?
Q: Is it possible to replace discharged internal batteries on location?
Q: How to extend autonomy of the Flash Feeder Compact?
Q:
Battery flash unit with car's cigarette lighter adapter usually does not charge unless the car s engine is on. What about Flash Feeder Compact?
Q:
Could there be a problem while starting the car engine if Flash Feeder Compact completely discharges the car's battery?
Q:
What can I do if Flash Feeder Compact stops due to a low battery and I do not have any external battery?
Q: What power of flash units can I connect to Flash Feeder Compact?
A:

All compact flash units and most of the power packs up to 3200 Ws work with Flash Feeder Compact. In some cases power packs of 6400 Ws can be used too.

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Q: How many flash units can I connect at the same time?
A:

You can connect for example up to four units of 400 Ws or two units of 1000 Ws. In this case you will use multioutlet cable socket.

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Q: What is the difference between Flash Feeder Compact and studio type battery flash units already available on the market?
A:

Flash Feeder Compact is inverter with output 230 V/120 V sinus wave with built in fast charger. It has been designed for photographers who already have their own studio flash equipment. Therefore, for correct price-value estimation, the photographer should compare Flash Feeder Compact to battery flash generators including chargers, batteries etc. available on the market. For example, if you buy studio type battery flash you need to buy also a battery charger or battery fast charger, dedicated flash head, 12 V car adapter (24 V truck, bus, boat adapters are usually not available) , a case and probably some accessories which will fit to this type of flash head.. Considering the total price of all these items you will find Flash Feeder Compact a very economical solution. Flash Feeder Compact has all these items already built-in a single heavy duty case.. As you probably already have your own flash equipment you do not need to buy any additional accessories.

Another difference is that most of the battery flash units on the market have power of about 1200 Ws. With Flash Feeder Compact as mentioned before you can use much stronger units which is very important if you require a better f-stop on the bright sun.

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Q: Why can I not use low cost inverters already available on the market?
A:

Trapezoidal wave inverters are generally useless for supplying flash units. Not only that they can not drive them, they could also damage them. Flash Feeder's inverter (due to its special design) effectively solves problems which usually appear due to incompatibility between the inverter's output and the shape of flash's current consumption. That means that it could be comparable only to high quality sinus wave inverters of over 1000 W continuous output power. Such inverters are also much bigger and heavier. Even such powerful inverters usually do not have enough smooth (filtered) output shape and might cause uncontrolled auto-triggering of flash units while supplying several flash units simultaneously.

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Q: Is there any advantage in using Flash Feeder Compact instead of an electrical gasoline generator?
A:

Low cost electrical gasoline generators can damage your flash units due to high voltage peaks occurring when the flash is discharge. Only expensive ones with stabilized voltage are recommended. But using Flash Feeder Compact means you can start shooting immediately when you reach your chosen location. All you have to do is to plug in your flash unit or units and switch on Flash Feeder Compact. There is no noise and no fume or any starting operation and problems as occurring with a gasoline generator. In some places such as remote churches or caves you can not use a generator because of fume.

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Q: What will be the recycling speed of the flash unit during the whole session until the battery is discharged?
A:

In most cases the recycle speed is practically the same as when the flash is connected to the mains voltage and depends only on flash unit capabilities. Some flash units with high current peaks may have longer recycling times. The recycling speed may also be slower when supplying more than one unit simultaneously (it depends on the entire current of connected flashes). So, for photography where the recycling speed is of great importance (fashion photography), we recommend using one Flash Feeder Compact for each high current flash unit.

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Q: Is it Possible to use a modeling lamp?
A:

A modeling lamp can be used with most flash units, but we recommend to use it only when necessary and for short time in order not to waste energy. Most of battery flash units use 50 W modeling lamp in their dedicated heads. With Flash Feeder Compact you can use a unit with standard let us say 300 W lamp.

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Q: Is it possible to replace discharged internal batteries on location?
A:

Yes, it is possible very easy by opening the battery compartment and replacing the whole battery pack. When all your battery packs are empty you can charge them with Flash Feeder Compact at the same time. It means when you put the unit to charge you charge internal battery pack and at the same time you can connect additional battery pack with a special cable to charge it. This way you can connect up to three battery packs for charging.

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Q: How to extend autonomy of the Flash Feeder Compact?
A:

The easiest way is to connect our Battery Case (FF3-0201-MP) via special cable (FF3-1201-A) to triple the energy. Another possibility is to simply connect (by original DC cord with clamps: FF3-1002-A) any 12 V or 24 V battery directly to Flash Feeder Compact. So it is up to you what type and capacity of battery you will connect to Flash Feeder Compact. Another advantage is that you can use low cost car batteries with very large capacity (up to 100 Ah or more).

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Q: Battery flash unit with car s cigarette lighter adapter usually does not charge unless the car s engine is on. What about Flash Feeder Compact?
A:

Flash Feeder Compact has a special built-in charger (switched mode power supply), which can charge internal battery and also external battery even when the car's engine does not run.

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Q: Could there be a problem while starting the car engine if Flash Feeder Compact completely discharges the car's battery?
A:

There will be no such a problem when using Flash Feeder Compact. It has an automatic protection, which switches off the charger when the car's battery still has enough energy to safely start the engine. The automatics also recognizes the type of connected battery (12 V or 24 V), so there will also be no problem when using 24 V battery e.g. in bus.

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Q: What can I do if Flash Feeder Compact stops due to a low battery and I do not have any external battery?
A:

When you receive the first beep signal from Flash Feeder Compact, warning you that the internal battery approaches low level, there is still some energy left before the unit stops automatically (At that point the feature of sealed lead acid batteries comes out.) If you turn off the main switch and wait for a few minutes, the battery will be partly recovered and some additional flashes will be available again. If you wait longer you get more additional energy. With this procedure which can be repeated several times the autonomy is increased up to 30%.

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If you have any questions regarding Flash Feeder Compact that have not been answered in the text above please feel free to contact Elektrona. We will be happy to reply you.

 
 
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