Recessed Light Details
The label inside the can specifies the maximum light bulb size and the correct trim style. If the light is too big or the trim is the wrong style, it will cause the light to cycle off.
Before climbing into the attic, check the bulb size and bulb location inside the can, the trim style and the cut-off switch.
If blown-in insulation is making a can light cycle off too frequently, solve the problem by installing an insulated box over the light.