100 this unit comprised of a globe and end supports does not require any replaceable or repairable components other than perhaps the fluorescent lamp e g lamp 86 fig1 a which extends longitudinally and coaxially within the globe it should be noted that the end supports e g supports 98 100 fig1 which support the globe are mounted in the frame structure 10 in the manner hereinbefore described with respect to the arrangement shown in fig1 i e by removing either the bolts 28 34 or 36 42 and disengaging either the end supports 16 and 20 or 18 and 22 therefore in case of accidental breakage of globe 90 fig1 connected to end supports 16 and 20 bolts 36 42 are unfastened to release end supports 16 18 from yokes 24 and 26 upon removal of the latter supports end supports 98 100 carrying globe 96 fig1 a are placed in position relative to yokes 24 26 and whereupon the bolts 36 42 are tightened in the latter condition in which the substitute globe unit is firmly and rigidly secured in the light fixture frame 10 this is accomplished with a minimum expenditure of time as compared with procedures involved in replacing broken protective globes of conventional explosion proof fluorescent light fixtures as for instance the prior art arrangement 102 shown in fig5 in the latter device the entire frame structure has to be dismantled for it has no means to individually disengage either one of the globes 104 or 106 from the fixture 102 the globe and lamp frame 108 is a one piece construction as opposed to the invention where the yoke e g yoke 24 fig2 a is separable from the lamp and globe supports in the direction of the arrow a b or.