The Sol 4044CS is an outdoor ceiling light shaped as a low cylinder, 20 cm in diameter and 11 cm high. Its body of extruded aluminium profile and aluminium alloy is powder-coated in corten colour (close to RAL 8011) — a coating on aluminium, not weathering steel. A clear safety-glass diffuser closes the underside, and the light comes from a built-in Philips Fortimo LED module with the driver inside the fitting — no separate bulb or transformer to buy.
How much light it gives
The LED module produces 2399 lm, and 2221 lm leaves the fitting at 19.3 W, i.e. 115.1 lm/W. For comparison, an old 60 W bulb gave about 800 lm. 4000 K is neutral white, without the yellowish tint of warm light.
The LED module stays visible through the clear diffuser, which protects the source without hiding it. The satin-diffuser version, Sol 4046, has the same LED module but gives 1890 lm, because part of the light stays in the frosted glass. The light falls symmetrically downwards, and a ULOR of 0.3% means only a negligible share of the flux goes above the fitting.
Dimming and servicing
It can be dimmed with a phase-cut dimmer of either type, trailing edge (TE) or leading edge (LE).
The LED module and driver are replaced only by a professional service, for which Norlys provides an LED service kit (ZS4044ZX0009) and a driver service kit (ZS4046ZX0009). Rated module life is L70 over 50,000 hours, which at 3 hours a day is more than 45 years.
Mounting and durability
It is screwed to the ceiling through two ø5 mm holes 100 mm apart. The terminals take up to three conductors of 2.5 mm², and conductors up to 1.5 mm² when the supply is looped on to the next fitting. Protection class I requires an earth connection, so installation is a job for a qualified electrician. The fitting weighs 2.65 kg.
IP65 means it is dust-tight and protected against water jets from any direction, so it can work under eaves or an open canopy, and IK06 means it withstands an impact of 1 J. Norlys intends it for gardens and private grounds — under a terrace roof, in a gazebo, on a balcony or above the front door. The plain, unadorned cylinder is a modern, minimalist design; its rusty corten tone suits wood and brick.