solus spc-320 120v automatic dusk to dawn photocell photo control light sensor switch for hardwire outdoor lamp posts with ezee change plug, works with most fixtures and bulbs, ul listed, black solus this offering includes a single pack of the spc-320 model. solus spc-320 120v automatic dusk to dawn photocell photo control light sensor switch for hardwire outdoor lamp posts with ezee change plug. easily works with most fixtures and bulbs. ul listed. up to 300w incandescent, 54w led, 39w fluorescent, or 100w h.i.d. light bulbs. maximum wattage: 120v, up to 60 watts. works with most led and incandescent fixtures and bulbs.