Hive lighting is just 8 days away from finishing their Kickstarter campaign for the WASP 100-C light. Their 35k USD goal was broken easily and now nearing $360k USD it seems they will have no trouble selling these lights like hotcakes. However you can still get one of these lights which is ideal for slow motion recording because of their flicker free nature. High quality LED lights have no flicker due to their continuous power nature. Even at extreme frame rates of 20000+fps these lights should be able to stay flicker free for recording.
Hive does professional event and cinema lights and the WASP 100-C is no compromise on their quality. For $849 you can still get an early bird WASP 100-C single light kit which is effectively $200 USD off from the final retail price. That is if you back it before the campaign is due to close in 8 days.