Osram 18W 2ft T8 Fluorescent Tube Light — Cool Daylight G13

An Osram Lumilux T8 fluorescent tube, 18W, G13 base, 6500K Cool Daylight — a compact tube (590mm nominal length) for smaller fittings in offices, workshops, and utility spaces needing bright, cool-toned light.

Will this fit my fixture?

Replacing an identical existing 18W G13 tube is straightforward once the power is off — twist out the old tube and twist in the new one. New fittings or ballast changes need an electrician.

Key Features

• G13 bi-pin base, 590mm nominal length
• 6500K Cool Daylight colour temperature
• Standard T8 26mm diameter, fits common fluorescent fixtures

Technical Specifications

FAQ

• Will this fit my fixture?
  If your existing tube is an 18W G13 tube around 590mm long, this is a direct swap.
• Does this need a starter?
  Yes, on magnetic ballast fittings you need a compatible fluorescent starter — most existing starters will already be the correct type if the old tube was also fluorescent.
• Is 6500K too bright/blue for a living room?
  6500K Cool Daylight reads as a crisp white-blue light, better suited to task areas like kitchens, garages, and offices than relaxed living spaces — consider a 3000K warm white tube for those.
• Why is this called "2ft" if the nominal length is 590mm?
  590mm is the trade-standard length for an 18W G13 tube, commonly rounded to "2ft" in the market even though it's slightly under 2 imperial feet.