Bulkhead, can be modified with sensor lights, or dimmable light. Bulkhead light, waterproof, no screw need; suitable for both indoor or outdoor installation. Technical data: 1) Power supply: 220~240V/AC 100~130V/AC2) Lamp: E27 100W 3) Product size: 300x300x90 mm 4) Material (Shade/Base): PMMA/PMMA5) IP54