Top convenient for your price range!

I have the LED light recently on a Panasonic Lumix GH3 in Semipro use.
Overall, I'm very satisfied ... although there is certainly better or smaller at a similar intensity, but also the most cost-stop significantly more (eg Tecpro Fillini Click).

POSITIVE:
- The (dimmable) brightness ranges as head light for documentation purposes MMN completely out (up to 4-5m good illumination)
- Very uniform light distribution with no "dark spots", to bright or flashy center vignetting
- Enclosed filter set (Tungsten, diffuser) and very durable battery
- Dimensions and weight just DSLR-compatible
- If necessary coupled with other lamps
- "Emergency" with conventional AA batteries possible
- Price ...

NEGATIVE:
- Colour temperature a bit too high (without filter slight blue tint)
- Something "rickety" mount the hot shoe (full plastic)
- No threaded receiver available (eg for tripod use)
- Tendency not adjustable (but to get over in the rotary everyday because the lighting is very flat anyway)
- Filters are clipped ... the holders act unfortunately somewhat filigree and keep you safe not eternal (ToiToiToi)

So overall a good light in their price range ... it has therefore certainly My basic recommendation.