Bulb holder with improved structure

[0030]FIG. 6 describes a third embodiment of the present invention. Dissimilar to the first embodiment, the first sidewall 31B has the opposite ends thereof extending and overturning to form a pair of first fixing portions 33B that encircle an accommodating space 32B. The second sidewall 41B has a pair of symmetrical second fixing portions 42B (according to the present embodiment, the second fixing portions can be a pair of retaining clasps) for being retained by the two first fixing portions 33B respectively. So that after the second sidewall 41B is inserted into the accommodating space 32B, the connectors 3B, 4B can be combined due to the two retaining clasps 42B being retained by the two first fixing portions 33B.

[0031]FIG. 7 is provided for explaining a fourth embodiment of the present invention. The present embodiment is dissimilar to the first embodiment by a varied coupling structure. According to the drawing, the first sidewall 31C has an accommodating space 32C and a resilient retaining clasp extending in a direction different form the direction of those in the first embodiment. Certainly, such structure can also achieve proper result.