Description The Orbis is a 100mm diameter ceiling downlight with a cylindrical polished chrome body made from turned aluminium. The fitting takes a single GX53 bulb (sold separately) and sits flush or semi-recessed into the ceiling, depending on installation type. The chrome finish provides a reflective surface that catches and bounces ambient light around the room while directing task light downwards. Designed for kitchens, bathrooms rated IP20 or above, hallways and commercial spaces, the Orbis works as accent lighting over worktops, in alcove displays, or as general downlighting in grid layouts across larger rooms. The GX53 bulb format is a low-profile disc-shaped fitting that allows the downlight to sit closer to the ceiling plane than standard GU10 or E27 fittings, making it useful in rooms with lower ceiling heights or shallow ceiling voids. The turned aluminium construction keeps the fitting lightweight at under 200g while providing effective heat dissipation from the lamp. The polished chrome plating over the aluminium gives a high-gloss mirror finish that pairs with contemporary and modern interiors, particularly where chrome taps, handles or appliances are already present. The fitting is dimmable when paired with a compatible GX53 LED bulb and dimmer switch. Specification Diameter (mm) 100 Dimmable Yes Number Of Bulbs 1 Bulb Type GX53 IP Rating IP20 Warranty 5 Years Frequently Asked What bulb does the Orbis take? The fitting takes a GX53 bulb, which is a low-profile disc-shaped lamp with a two-pin bayonet base. GX53 bulbs are sold separately and are available in LED format with various wattages and colour temperatures. The shallow profile of the GX53 format makes this downlight suitable for ceilings with limited void depth. Is it dimmable? The fitting itself is dimmable-compatible, but dimming depends on pairing a dimmable GX53 LED bulb with a compatible dimmer switch. Not all GX53 LEDs support dimming, so check the bulb specification before purchasing if dimming is required. Can it be used in a bathroom? The IP20 rating means the Orbis is suitable for general indoor use but not for bathroom zones that require IP44 or IP65 protection (zones 1, 2 or 3 near showers, baths and basins). It can be used in a bathroom outside these zones, typically 600mm or more away from any water source. What ceiling void depth is needed? GX53 fittings typically require a ceiling void depth of 40-60mm depending on the specific lamp height and driver arrangement. The shallow profile of the GX53 format makes this fitting more suitable for ceilings with limited void space compared to standard GU10 or E27 downlights.