For whatever it’s worth, I have two comments on this:
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If you want to see a re-enactment of how this is done, see the schlock Ken Wahl movie “The Soldier” where the (I believe) head of the CIA is killed with one of these gas-bulbs in his desk lamp. Stupid movie, but it does have a segment where a guy makes one of these, then disguises himself as a maid and replaces the bulb in the office.
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Everyone assumes the damage is minimal from one of these devices because they assume you would have only one. If it was me, I’d be stringing the lights all over the lab which would presumably hurt/ maim/ kill anyone raiding the facility and ignite the evidence.