each of the surfaces 52 a 52 b each led module 10 is oriented to direct a majority of the light generated therefrom onto the opposing sidewall 56 fig1 illustrates a further enhancement of even illumination by using a mirror 66 mounted on bottom wall 54 to redirect light back toward the sidewalls 56 it is to be understood that the present invention is not limited to the embodiment s described above and illustrated herein but encompasses any and all variations falling within the scope of the appended claims for example support member 20 could be two separate support members mounted back to back or a composite structure that includes one or more pc boards mounted together or to a rigid material bolts 36 40 can be any rigid member e g pins rivets etc that can slidably attach the scissor arms 30 to the mounting member 28 via slots 38 42 only some or even none of the scissor arm lower portions may include the adjustment screws 32 in which case some or even all of the engagement surfaces may be on or attached to the scissor arm lower portions themselves e g its outer side surface bolts 40 could extend from portions of scissor arms 30 above mid portion 30 b and bolt 36 instead of below mid portion 30 b as shown in fig4 if raising or lowering the height.