the power supply (regulator) board comes with filtering capacitors, film caps, etc. that would pop and "explode" mainly due to capacitor venting gas.
Consider getting some higher quality units where the capacitors may be of better reliability.
(*in this day and age where cheep LED bulbs are made in china, no such thing called "reliability" anymore*)
Q.
On the original subjet: none of my LED bulbs have exploded yet, and neither any of the CFLs that I've used/been using still....
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