Nowodvorski 9211 GU10 ES111 LED reflector bulb, black, 9 W, 4000 K, diffuser Promo Code 🚀- NOVO15 until the end of Oct 25

Nowodvorski 9211 is a black ES111 LED reflector bulb with a GU10 base and a central diffuser. Part of the BULBS AND TUBES collection, it is a replaceable light source rather than a complete fixture. Selecting it requires checking both the socket and the space available around the bulb.

A GU10 base does not determine bulb size

The bulb measures 11.1 cm across and 5.8 cm high. Compare these dimensions with your fixture's opening and internal clearance, particularly where a retaining ring or shallow housing limits space. A matching GU10 socket does not by itself mean that this broad ES111 bulb will fit where a smaller GU10 source was used.

The black plastic body surrounds a pale diffuser face. Where the bulb remains exposed, that black surround contributes to the fixture's appearance. It is still a functional component, not a separate decorative lamp with its own room-style classification.

Neutral white light with a wide beam

A colour temperature of 4000 K gives neutral white light. The stated output of 900 lm lets you compare the amount of light with other bulbs, while the 9 W rating describes power consumption. Brightness and consumption are different selection criteria, so compare lumens rather than relying on wattage alone.

The 120° beam is broad rather than a narrow accent beam. Coverage also depends on the fixture and its distance from the illuminated surface. When combining several sources, check their colour temperatures as well as their output. The manufacturer specifies CRI ≥ 80 and a lifetime of 25,000 hours; the lifetime figure is not a warranty period.

Compatible fixtures and replacement

This source is intended for indoor fixtures and a 220–230 V AC supply. The instructions rule out tightly enclosed fixtures that prevent free air circulation. Disconnect the supply before replacement and allow the bulb to cool. Use a soft, dry cloth without chemical cleaners for cleaning. Room suitability depends on the complete fixture, not simply on the presence of a GU10 socket.