tubular bulb 42 mouthpiece holder 88 reflector portion 87 connection piece 89 39 male terminal 90 39 another female terminal 133 39 power supply is formed and the tubular bulb 42 is lit if the tubular bulb 42 is lit the light will be emitted forward but since a relatively large reflector portion 87 is to the rear side of the tubular bulb 42 the light of the tubular bulb 42 is effectively emitted forward by the reflector portion 87 particularly since the inclined portions 94 and 94 39 have been formed in the reflector portion 87 the light to be emitted upward or downward is effectively emitted forward in addition the reflector portion 87 functions as a heat intercepting plate for protecting the main body 74 from the heat generated as the tubular bulb 42 is lit and also functions as a light shielding plate for preventing the light of the bulb 42 from transmitting through the main body 74 reference numerals 171 and 171 fig1 and 28 denote buffer stoppers made of rubber each buffer stopper 171 is integrally formed with a round engagement head portion 172 and a mounting leg portion 173 extending rearward from the rear surface of the head portion 172 the mounting leg portion 173 is so formed as to be reduced in diameter as it extends toward the lower end thereof between the head portion 172 and the mounting leg portion 173 there is formed an annular groove 174 reference numerals 175 and 175 denote mounting bores which are formed in the right and left end portions of the lower end portion.