Incandescent standard reflector light bulbs are perfect for general lighting or directional lighting. These light bulbs last on average up to 2000 hours. These reflectors with medium screw bases make them compatible for use with standard household fixtures-everything from recessed or track lighting to accent cabinet lighting. Last up to an average of 2000 hoursCompletely dimmableVariety of reflector sizes including R14, R16, R20, R/BR30, BR40 and BR38