This item was received from someone else. It was unopened, but I opened it for the photos. Includes a Toshiba LED lighting fixture instruction manual. Model Numbers: LEDD85920(W) LEDD85920(S) LEDD85920 (K) Applicable Products: High-sealing, insulation construction downlights (for SG1 type and eaves) Suitable Insulation Method: Mat laying method Compatible Lamps (sold separately): LED unit flat type (GX53 base) Up to LDF7 (outer diameter 75mm) Recessed Hole Dimensions: Φ100±2mm