Aeryk71, I do not point the tube lights. I create a tube, casting NO shadows(Important). The shader of the tube has no colour and white glow. I place the tubelight inside the tube, in the middle of the tube length, aligning the axis, going from top to bottom of the tubelight, with the tube. In simple figures this should look like this: ===Oo=== Then I look up the length of the tube and set the length in general properties of the tube light to the same value. So I get the impression, the tube itself is casting the light, what in my opinion is the purpose of the tube light. wolfdd