12W LED E27 Corn Lamp 4000K - Cool White 1695lm

The Knightsbridge 12W LED E27 corn lamp delivers 1695 lumens at 4000K cool white across a 260-degree beam angle from a cylindrical polycarbonate and aluminium housing. The corn-style LED array wraps around three vertical panels inside a clear polycarbonate tube, distributing light in nearly all directions rather than concentrating it downwards like a standard bulb. This makes it suited to bare-bulb pendants, industrial-style cage fittings, and enclosed luminaires where the light source is visible and omni-directional output is needed.

Designed as a direct replacement for traditional incandescent or compact fluorescent lamps in E27 screw fittings, the lamp installs without modification to existing fixtures. The 4000K colour temperature sits in the neutral-to-cool range and reads as clinical white light rather than warm, making it more typical for commercial spaces, workshops, garages and task lighting in kitchens or utility rooms than for living rooms or bedrooms where warmer temperatures are usually preferred. The 146.4 lm/W efficacy rating means the lamp draws 12W to produce the same output as a 100W incandescent.

The polycarbonate outer tube and aluminium base provide thermal management to keep the LED array within operating temperature, contributing to the rated 50,000-hour L70B50 lifespan. The lamp is non-dimmable and carries an IP20 rating, limiting it to indoor use or fully enclosed outdoor luminaires where the lamp itself is protected from moisture. The 60mm diameter and 128mm height are larger than a standard A60 bulb, so check fixture clearance before ordering if the lamp will sit inside a shade or enclosure.

Product Specification Sheet

Is this lamp dimmable?

No. The 12W E27 corn lamp is non-dimmable and will not function correctly with dimmer switches. Attempting to use it on a dimmed circuit may cause flickering or damage the lamp.

What does 4000K colour temperature look like?

4000K is a neutral-to-cool white light that reads as clinical rather than warm. It suits task lighting in kitchens, workshops, garages and commercial spaces. For living rooms or bedrooms, 2700K-3000K warm white is typically preferred.

Will it fit inside a standard lampshade?

The lamp measures 60mm diameter by 128mm height, which is larger than a standard A60 bulb. Check the internal clearance of shades or enclosed fixtures before ordering, as the corn-style housing may not fit where a traditional bulb would.

Can it be used outdoors?

The IP20 rating means the lamp has no protection against moisture and is suitable for indoor use only, or in fully enclosed outdoor luminaires where the lamp itself is protected from the weather.