Energizer 18W 4ft LED Tube G13 - 4000K Cool White 1950lm

The Energizer 18W 4ft LED tube is a direct retrofit replacement for traditional T8 fluorescent tubes, fitting standard G13 bi-pin fittings. It produces 1950 lumens at 4000K cool white colour temperature, delivering 108 lumens per watt across a 170-degree beam angle. The tube operates on 230V mains with an integrated LED driver and requires the supplied LED starter to bypass the ballast in existing fluorescent fittings.

Designed for commercial and residential applications requiring clear, neutral light, the tube suits offices, workshop areas, kitchens, retail back-of-house spaces and garage lighting. The 4000K cool white sits between warm domestic lighting and clinical daylight, providing clarity for task work without the harsh blue cast of higher colour temperatures. The 1.2m length fits standard 4ft fluorescent battens and panels after the old ballast is bypassed using the included starter.

The full glass construction is coated with a shatterproof protective layer, providing impact resistance in environments where breakage is a concern. The tube weighs 230g, making it light enough for ceiling installations without additional support. The integrated LED driver provides flicker-free operation at mains frequency, reducing eye strain during prolonged use in workspaces. The non-dimmable design means the tube operates at full output when switched on.

Installation requires removing the existing fluorescent tube, replacing the old starter with the supplied LED starter, and fitting the new LED tube into the G13 sockets. The tube then draws 18W compared to the 36W typically consumed by the fluorescent tube it replaces.

Can this replace a standard fluorescent tube directly?

Yes, but the old fluorescent starter must be replaced with the LED starter supplied with this tube. The LED starter bypasses the ballast in the existing fitting, allowing the tube to operate on mains voltage. Remove the old fluorescent tube, swap the starter, then fit this tube into the G13 sockets.

Is this tube dimmable?

No. The integrated driver operates at fixed output. When switched on the tube delivers full brightness at 1950 lumens.

What colour temperature is 4000K?

4000K is cool white, sitting between warm domestic lighting and clinical daylight. It provides neutral, clear illumination suited to offices, workshops and task areas without the yellow cast of 3000K or the blue tone of 5000K+ daylight tubes.

What does the shatterproof coating do?

The glass tube is coated with a protective layer that holds the glass together if the tube is dropped or struck during handling or installation, reducing the risk of sharp fragments in commercial or domestic environments.