The T2 Half Spiral bulb is a slightly less compact (and therefore more economical) bulb than the T2 Full Spiral.  With lighting properties that are comparable to the T2 Full Spiral this bulb is available in a wide range of wattages and is most suited to residential use. Some of the key features of this CFL are:

• 10,000+ hour lifetime
• Very compact, fits almost all fixtures
• Suitable for residential use both indoor and outdoor
  
• Available in Cool White (6,400K), Nature White (4,100K) and Warm White (2,700K) colours
• Low mercury level of 2.5mg per bulb
  
• Available with CE and RoHS for Europe and Energy Star and UL for North America
• Fits most household fixtures