Call us dim bulbs and we won’t argue. We’ll just let you pick from our selection of dimmers. All of them are made for standard electrical boxes, and you'll need 1-3/8” back clearance. All are good with incandescents but not CFLs, and can be used with LEDs, but will then not fade to total black. All include wiring instructions, screws and wire nuts and are UL listed. The dual slide one is for (2) 120V fixtures up to 300W, and has a full-off switch at one end of the faders. The 700W slide dimmer for a light fixture has an SPST rocker switch and is OK for single or 3-way wiring, although multi-gang wiring will be lower wattage.