using LED lights

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Hi,
I've been thinking about finding a cheap way to carry good light with me to remote places without using a generator, and I have a thought of putting together about 6 LED lights in a configuration on one stand to make one spotlight.
Rechargeable AA batteries could be used and those lights burn for ~70h.

Using something like this as parts: garrity-ks200gst02n-3-watt-led-spotlight

Just one question, has anyone tried using LED lights in filmmaking, how do they look?

Thanks

 

[Walter Graff]

Not great for most applications. They offer limited color rendering index, are inefficient in quantity of light and in most cases are limited in how much of a wide beam you can get. A good incandescent and a few batteries will do much more.