It is 8pcs *3W mini bar light with RGB 3 in 1 led , we also can do another version with rainbow color effect by using this same case. It is very compact ,only 42cm long and it is not heavy,only 0.75kg. The beam angle for this one is 110 degree reflector.We also can do 3W 9pcs RGB single color, cool white color and UV color.By the way, it can be connected one by one to meet your requests on length.