Harbor Freight Dimmers. Cheap and perfectly effective.
Google them, go to your local Harbor Freight. They can handle a 1k light (Lowel DP) just fine.
Now to the lecture:
Also, keep in mind that lighting is a master art. It is good to read a lot about it, just to get to understand that a junky little Lowel Kit is something you can grow out of very fast.
I know a lot of people that say, over and over again, that they "Don't need big lights to accomplish their work. These cameras are sooo good in low lights."
These people are talking about getting working illumination, and not lighting.
They suck at this stuff.
Sorry if I offend anyone, but it's the honest truth.
Please think about this: If that was true, and it's all about camera sensitivity, and 35mm film is more sensitive than a video camera, why would productions need all these huge grip trucks? Why is that? Because ultimately lighting is about setting a mood with light, not worrying about dimmers and stuff like that. It is a very, very, very knowledge based art, and it is terribly, terribly glossed over and sold as good by a literal ton of news photographers that think they know lighting, and absolutely, horribly, and truly don't crap about lighting.
I work at a highly, highly respected ENG shop, and I cringe at the lighting that people call good in news. It makes my skin crawl.
Man, do they ever think they know this stuff, though.
Oh, they're great at it.
They'll tell you they're awesome.
Others in ENG will agree.
Simply put, it is the uneducated teaching the uneducated terrible techniques in ENG, and passing them off as expert.
Ask any news photog what a fresnel light is vs. an open faced light, and three quarters of them don't know what you're talking about. They might say, "what's a fresnel?"
Ask them how a fresnel light works, or why you would want one, and you're knocking out about 95% of the ENG world.
People, there are only probably a dozen major types of lights.
You must, unfortunately, test where you're getting your advice from.
More than worrying about any light kit, beyond the basics, please seek knowledge outside of ENG photogs about lighting.