No flickering yet. These are 120v incandescent bulbs. The extension cord is too short for most installations unless you want to illuminate each foot. You can easily cut and splice the cables to the length you want. Mine came with 3 power cords so there are enough wires and an extra power plug. The screws provided are too long for most cabinets. You used the drywall anchors that came with it. Daylight is pretty close to a 5000K incandescent bulb. Cool white is more like warm white and warm white is too orange. I suppose it might be ok in an all white room. 1 star deduction for screws and short cables.
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