Our table top transformers provide a safe and convenient power source for any dollhouse or miniature room. All Cir-Kit Concepts' transformers are designed to plug into a powered outlet, thus eliminating the need of building a special transformer enclosure within the dollhouse. Class 2. Input: 120 vac 60 hz 48 watts. Output: 12 vac 40 watts. Circuit breaker protected. Up to 64, 60ma 12v GOW bulbs. Or 100, 40ma 16 GOW bulbs. Or 20, 20 ma spotlights or bright fluorettes. Dimensions, inches: 2 5/8W x 2 3/4H x 2 1/8D. 1in to 1ft. 1:12 Scale. This is sized for a dollhouse. Detailed scale model for adult collectors. Not intended for children under 14.