With a 1.9" diameter and a T12 form factor, the PavoTube 30C 4' RGBW LED Tube with Internal Battery 4 Light Kit from NanLite is ideal for hiding unobtrusively in small areas on a set or for shooting in vehicles such as cars, boats, or planes. The kit contains four PavoTube 30C 4' LED Lights complete with AC adapters mounting clips and a carrying bag. You can connect the lights together with the included sync cords.