12V. IP44. Fixed Cast Downlights feature push-fit lamp retaining ring that creates IP44 seal when used with a closed MR16 lamp. Suitable for use in zones 1, 2 and 3 of bathroom (except where water jets are likely), as required by IEE wiring regulations. Transformer Required. Specifications: Cut-out dia. 78mm. Max. lamp wattage 50W (35W when used on flammable surface eg. wood). Lamps not included. For lamps: 35W (Quote 95139), 50W (Quote 58605).