used fig1 shows another modification wherein the unit 22c has the two compartments 26 and 28 formed with separate planar bosses joined together to form the central single boss 111 defining at their ends one of the cups 36 while the second cup 38 is connected by means of its lead wire 68 the respective recessed washers 54 and 56 are shown in place within the cups the pair of larger washers 82 shown in broken lines with their smaller center bores 84 to fit upon the single pins 16 of 8 foot tubes or other single pin tubes are shown along with the pair of smaller washers 100 with their smaller center bores 102 to fit upon the smaller diameter pins of two pin tubes are also shown to complete the parts necessary for either installation the other parts remain the same except that in this instance the holes 112 are provided for ventilation of the motor an outlet 80 can be provided on the outside wall of the unit 22c as desired a further modification can include the integral nipple 114 for the lead wire 68 for the cup 38 the wire hanger 115 can be used to attach an attention getting advertising display or the like to the motor shaft in fig1 and 14 still another type of power take off unit 22d is shown having the u shaped bracket 116 attached to the round plastic housing 118 by means of a screw not shown with the flange end 120 provided with the hole 122 for attachment to the ceiling adjacent the fixture for.