Hi, I work for Frezzi, and each day we provide solutions for what you have asked about-
It may be better to budget a little more if you wish to have something accepted by professionals that you can always use, for example it is very common for people to still be using the same Frezzi Mini-Fills they had started their careers with many years ago- Here are some suggestions:
A great all purpose camera top light would be the on-off version, which can use standard MR-16, 12 volt / 20 watt thru 100 watt halogen bulbs as well as new LED plug in versions...the on-off model goes for $275.00 list and a dimmer version lists for a little over $100 more.
You can select a bulb in the range you need, for example wattage on the lower range for close up interviewing, or at the higher range for filling a room. 35 or 50 watts sits in a general middle range. A soft box can also knock down the output while providing pleasing diffusion. A lamp with dimmer control naturally will allow you to dial in what is needed, and dichroic conversion filters can convert warm tungsten to cool daylight. There is the smaller, more entry-level Micro-Fill too, available in on-off and dimmer versions for about $50-$60 less, and use either 20 or 35 watt tungsten bulbs.
These lamps are available in a variety of power connectors for sharing power with the camera or independently powered by battery- the FNP-1MH battery will run a 50 watt bulb (max. recommended load) for just under 1 hour, a 35 watt should run about 1.4 hours. It also doesn't have the special travel restrictions that Lithium batteries can have. The FQC-NP1 charger should charge this battery in about 4 hours, and let you know when it is done unlike 'trickle' chargers. There are also other higher capacity batteries and chargers available.
The important thing about tungsten and HMI lights is that they are full spectrum light sources- this is worth investigating further and more information is available on our website- Frezzi also has efficient HMI (daylight) camera top and studio lights available- go to Frezzi.com to see these items, and feel free to contact us in Sales or Service if you have any questions- we’ll be happy to help.