Replacement bulbs > Helix spiral bulbs
Often described as a compact fluorescent this bulb is like a fluorescent tube coiled up into a spiral. The new T2 versions are very quick to start up and are very bright for their compact size.
The smaller tubes used in the current range of products mean that the smallest lamps are very small indeed. The high powered spiral lamps, are quite large, but will produce a very large amount of light.
These bulbs are also available in a daylight colour, which is a very bright white light instead of the usual warm yellow light. Many of our customers prefer this light as it's easier to see and read with, renders colour more accurately, and can help combat seasonal affective disorder (SAD).
All helix spiral bulbs with a standard bayonet (BC / B22) cap.
This is the 'normal' or 'large' bayonet cap that is commonly used in the UK with a diameter of 22mm. It can be found in all types of light fittings and fixtures.
All helix spiral bulbs with an Edison screw (ES / E27) cap.
This is the 'large' size screw cap, the screw thread has a diameter of 27mm. It is quite common throughout Europe.
All helix spiral bulbs with a small screw (SES / E14) cap.
This is the 'small' screw cap, with a diameter of 14mm. The SES lamp cap is often used in table lights and bedside lights.
L1 spiral bulbs have the same electrical connector as GU10 bulbs, but are only used on low energy bulbs.
They are used in light fittings from tp24, including the Rio T2 recessed downlight.