I have AC 85-265V to 0.3A 8-12W DC 22-40V Internal constant current power supply for LED spot lights. This is the exact model https://www.lightinthebox.com/en/p/0-3a-8-12w-dc-22-40v-to-ac-85-265v-internal-constant-current-power-supply-driver-for-led-spot-lights_p1875439.html?prm=126.96.36.199
When connected to the AC main (120v) the driver short circuits by the AC connection points, resulting in a large spark and destroyed driver. However, this does not occur if the DC output is wired to a 32v LED chip, and the driver works fine.
Questions. Are internal constant current drivers required to be connected to a load (eg. LED COB) before the AC current is switched on?
If this is the case, how would I prevent the driver from short-circuiting in the event that the LED chip dies?
Any help or insight on why this is happening would be appreciated, thank you.