picked up a 75 watt Haolgen GLS lamp yesterday ( payed $3.95 ) - it died in a few seconds.
The brand is Crompton Lighting ( H75GLSBCP) - made in China of course.
Now that the sale of normal GLS bulbs is banned, only the Halogen types are legally on sale.
The Crompton lamp did not seem any brighter or whiter than a regular 75 watt lamp and the filament was particularly loose and wobbly. One tiny bump when it was on and it blew.
The reason is simple: Inside the smaller glass envelope, the filament coil loops up and around a glass support - but is so loose that the parallel runs are able to touch each other.
Woollies sell similar lamps under the " essentials " brand and they seem to be fine and the filament coil is taught.
PLUS the Woollies is rated at 1150 lumens compared to 950 for the Crompton.