solus spc-688 120v automatic dusk to dawn photocell photo control light sensor switch for hardwire outdoor lamp posts, works with most fixtures and bulbs, black solus solus spc-688 120v automatic dusk to dawn photocell photo control light sensor switch for hardwire outdoor lamp posts. 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.