Elco EL518 5" Eyeball Trim for 75W Bulbs Features: Compatible with shallow housings Specifications: Lamp: 75W PAR30, R30 Outside diameter: 6.25" Compatible with the following Elco housings: EL55ICA, EL55RICA, EL5IC100A, EL5ICA, EL5RICA, R5H, RR5H