Nella Surface Mounted Round Downlight

This is the 18 W Nella Baffled, and the thing that separates it from the similar-looking Nella on the rest of this site is its rating: IP65, not IP54. That is the difference between a fitting for a covered ceiling and one that will take direct water — an open carport, an exposed pergola, a wash-down area. The body is Ø114 mm across and 140 mm deep, on a Ø108.5 mm base plate, and it needs no cut-out.

Four part numbers on one page

Black or white, each on either supply. HV5853S-BLK and HV5853S-WHT run on 240 V — Protection Class 1, an earth is required — and are the Triac dimmable ones. HV5853S-BLK-12V and HV5853S-WHT-12V run on 12 V DC from a constant-voltage driver, are Protection Class 3 with no earth at the fitting, and Havit specifies them as not dimmable. Havit's own instruction sheet is blunt about the limit on that version: do not connect the light fitting directly to 240 V. All four have identical optics and identical output.

Output, and a colour switch that costs almost nothing

Five settings — 2700K, 3000K, 4000K, 5000K, 5700K — measured at 1,260 / 1,270 / 1,280 / 1,290 / 1,300 lm. The whole spread is 40 lm, about 3%, which is unusual and genuinely useful: on this fitting you can choose the colour purely on how the space should feel, because the brightness barely moves. That is not true of the smaller Nella bodies, where the same switch swings output by 20% to 46%. The beam is 60° through a honeycomb baffle, glare is rated UGR <10, and colour rendering is CRI >90 with SDCM <3 binning.

What IP65 buys, and what it still needs

IP65 means dust-tight and protected against water jets from any direction. It is the reason this range exists alongside the IP54 one. It is not a licence to be careless: the installation sheet requires the seal to stay in place when the fitting is mounted outdoors, and warns that all o-rings and seals must be in place correctly to maintain warranty. Havit also excludes aluminium fittings from sites within 5 km of salt water, which rules out most beachfront work whatever the IP figure says.

Fitting it

The base plate twists off anti-clockwise and screws to the ceiling; the body unplugs from its driver so the plate goes up first, and the whole fitting twists back on clockwise. The colour switch is inside the fitting and preset to 3000K — set it before the body is locked home. Multiple fittings on one run wire in parallel. Rated IK08 for impact with a plastic diffuser and >30,000 hrs of life, and the warranty is 3 years replacement. Lights For You also lists the 24 W version of this same IP65 body where a larger space needs more from each position.

Download Datasheet (PDF)

Download Datasheet (PDF)