Full disclosure: I'm a LumeCube ambassador. Due to some projects i've worked on and my reach on Instagram I was sent some LumeCubes to shoot some great content. However I am not paid to say they're great and like all of my reviews this is a thoroughly honest breakdown of my experience with them.
So LumeCubes are these incredibly compact, high output LED lights with exceptional build quality. Think of the size of the GoPro Session and your pretty much there in terms of the size of these guys.
If you're a professional photographer/ cinematographer or just someone who likes shooting with their phone or GoPro then these little guys are a must have for your gear bag. Not only are they waterproof and robust but they'll take up hardly any room in your bag.
They sync up via bluetooth to work as flashes with your mobile or can be used at varying power outputs for continuous lighting. The first time I heard about them was because of Casey Neistat attaching them to his drone. I had a trip planned to some mountains near Snowdonia where my dad discovered an old abandoned slate mine about 30 years ago. The first thing I wanted to do was attach these lights to my drone and fly it through the slate mine! The video's from the that trip are on there way but you can see my blog post about light painting with long exposure shots HERE.
I honestly cannot express how surprised I was about the output from these guys. At full power they'll run rough an average of an hour, and two hours at half power. Truthfully though half power is more than sufficient for most situations! They charge via USB and I regularly charge them off of a power bank in my backpack between shots on shoots with no problems. They mount with a standard camera mount but also have a range of accessories/ bundles you can purchase with them to mount them with GoPro accessories. They're so versatile and can be used for an abundance of things.
I will be writing some articles about how I use them in the studio for portrait shots, product photography as well as for light painting and on my drone, so check in for updates! The list of possibilities for these little guys is endless! I'll also be doing a thorough video review so give a more hands on view of what these cubes are like!
In terms of a negatives to these I can honestly say there's only one thing I would watch out for, which is heat! Now anyone working in film or with decent lights in a studio will know that they get hot! So this is no surprise when considering the size of these things and the output they have! So all in all it's not so much a negative that can be avoided but more something to be aware of! I've grabbed them off a stand at the end of a shoot without thinking and been caught off guard! So give them a chance to cool down if shooting with them on full power for an extended period of time! As I said above this is to be expected with any high output lights and for regular use this won't be an issue at all!