Half of you may have already seen Vimeo member Frank Glencairn's cheap LED Shootout video (Above), but for those who are still asking questions, this might be a good jumping off point. Frank runs through the CN-126 LED, Z96, and Yongnuo's 135 & 160 LED light. As a baseline for a good lighting example he throws in the LitePanels Micro into the bunch, but this is far from a cheap LED Video light.
Obvious pros and cons for each light, one being that none of the tungsten filters that were provided actually worked well as real balanced tungsten color. Since the Yongnuo's don't provide this, I guess that doesn't make it such a deal breaker. You'll have to work with proper gels regardless of the light you decide on. The video was done with an HVX200 so keep in mind that DSLR's may achieve better results with a bit of an ISO push. In any case, enjoy the video examples above on brightness, spotting, and diffusion. [Thanks Frank]
To save you a bit of reading, here's Frank's Verdict (from blog)
I´m a bit undecided. The NG 126 and the Litepanels Micro look outdated, compared to the newer lights. The Z96 has the best daylight balance and the nicest overall light, but the YONGNUO 160 is much more powerful. The YONGNUO 135 is somewhere in between them. Non of the provided Tungsten filters is usable IMHO with the exception of the one from Litepanels Micro. I use normal gels instead. Tricky lids, useless barndoors, mounting options, that are not exactly what you want on a professional set, are no deal breakers, but I hope they will be improved in the future. Some guys asked me to watchout for flicker. I had no flicker at all, unless the batteries getting weak, than they start to flicker.
If I have to choose one (and until I need a real strong light), I think I would go with the Z96, because of the superb light quality and it has a dimming wheel instead of that buttons.
- Frank Glencairn
Litepanels Micro LED On-Camera Light