The same people who came up with one of the brightest LED bars we have seen have managed to attach it a drone. As explained in this video from rctestflight, a Freefly Altadrone was used to carry this LED light bar. This guy attached landing gear and installed a servo to switch the lights on/off.
The drone and light can both run for about 10 minutes. The color and brightness of the lights can be changed using an app. You can catch the full video here