light bulb assembly 1 is installed into fans elevators garage door openers or other environments where the bulb assembly 1 will be subjected to mechanical vibration in accordance with another embodiment which may be used by itself or with any combination of embodiments disclosed herein the end of light bulb 1 where leds 5 are positioned is provided with one or more mechanical members that is positioned spaced above the tip of leds 5 i e the portion of the led that reference numeral 5 points to in fig1 for example the mechanical members may be safety edge 33 of front cover 7 safety edge 33 makes the front cover rigid and strong and preferably flat and provides mechanical protection for the leds 5 which are recessed lower than the safety edge a shown by distance 34 the distance 34 may be at least 0 010 u2033 preferably 0 010 u2033 to 1 0 u2033 more preferably 0 050 to 0 25 u2033 and most preferably 0 100 u2033 to 0 200 u2033 it will be appreciated that edge 33 need not be continuous and the mechanical members may comprise a series of posts extending upwardly from board 6 and or cover 7 and or main body 3 in accordance with another embodiment which may be used by itself.