Lamp permanently defective

HI! I find it to be a puke…. Since I buy the somewhat expensive lamps of Ph…. because they make a cool light, but so far I was more than happy with it, but I have now needed within 4 months 3 lamps. first came (I believe in Oct.) the left lamp. so bought again (22€) then shortly before the holiday came the right , again (22€). now I turn on the light, it goes on and starts again the left one away. is that normal??? will probably measure the voltage as soon as possible. (whhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh I’ll do it anyway)