Nella Surface Mounted Round Downlight

The largest of the IP65 Nella Baffled fittings: 24 W, a Ø136 mm body 180 mm deep, on a Ø131.5 mm base plate. It is a substantial object — closer in presence to a small surface-mounted oyster than to a downlight — and it exists for the ceilings where a recessed fitting is impossible and one position has to do a lot of work.

Where the IP65 rating matters

This range is dust-tight and rated against water jets from any direction, which is why it, rather than the IP54 Nella, is the one for an open carport, an unenclosed pergola, a plant room or a wash-down bay. The trade is honest: the seals are what earn the rating, and Havit's installation sheet states that all o-rings and seals must be in place correctly to maintain warranty, and that the seal must stay in place on any outdoor install. Havit also excludes aluminium fittings from sites within 5 km of salt water, so coastal work needs a different material rather than a higher IP number.

Four part numbers, two circuits

Black and white, each on either supply, all four with identical optics. The 240 V models are Protection Class 1 — an earth is required, connected before positive and neutral — and are the Triac dimmable ones. The 12 V DC models take a constant-voltage driver, are Protection Class 3 with no earth at the fitting, and Havit specifies them as not dimmable; its instruction sheet prints the limit in capitals — do not connect the light fitting directly to 240 V. Where several share a run they wire in parallel.

Output and the colour switch

Five settings from 2700K to 5700K, measured at 1,400 / 1,410 / 1,420 / 1,430 / 1,440 lm. As on the 18 W version, the whole spread is about 3% — so the switch is a colour decision and not a brightness one, and a scheme can mix warm and neutral rooms without recalculating anything. The beam is 60° through a honeycomb baffle, glare is rated UGR <10, and colour rendering is CRI >90 with SDCM <3 binning, which is what keeps a row of them looking like one row.

Installing it

No cut-out. The base plate twists off anti-clockwise, screws to the ceiling, and the body — which unplugs from its driver — twists back on clockwise, so the plate can be fixed and wired long before the fitting is handled. The colour switch is inside the body and preset to 3000K; set it before locking the fitting home, because reaching it afterwards means taking the whole thing down again. Rated IK08 with a plastic diffuser and >30,000 hrs of life, with a 3 year replacement warranty. Lights For You lists the 18 W version of this same IP65 body, at Ø114 × 140 mm, where the ceiling is lower or the positions are closer together.

Download Datasheet (PDF)

Download Datasheet (PDF)