its cool...
sometimes you can just pull off the diffusers but its rare if you can
some people use a pocket knife, score the bottom where the diffuser meets the bubble, i usually do this method, then i take the tip of the blade a push the diffuser till it pops in, remember its plastic....
other methods you can use is a hacksaw, i've even seen a drill in the top upside down, and then a good pair of sissors, just becareful not to hit the leds inside of them......my first time i bought two bulbs, the first one i messed up, the second one i got.....
you can always ck youtube there are videos about it...
above all things just becareful not to damage the led lighting inside...and your hands too....