Niel: If you live in the house, then you can replace the light fitting (with similar type) yourself as long as you don't change (extend) wiring. No need for an electrician.
Electrician in Wellington that got fittings certified to NZ-specific standards. You can pick the exact colour temperature you want (we got 4000K). I've replaced ~30 fittings in my house, just did not bother with the garage and outside. Cost a fair bit, but done once and done right with good quality parts locally supplied at a reasonable price.
nicmair: So if I am faced with replacement, would I not be better off replacing with 240V GU10 style (so long as they fit in the hosuing) and do away with the transfomer completely.
- good feedback
You can never have enough Volvos!
Niel: A mains rated LED lamp will always run hotter and be less reliable than one with an external power supply (like the web site I've linked to). This is because in addition to being constrained by a tiny space for a heat sink inside a confined fitting, a 240V bulb also has the power supply built into the base which dissipates approximately 15% due to its inefficiencies. And the cheap bulbs from overseas have not been tested for EMC/EMI compliance including coping with surges. Best is to do it right.
The bulbs that do pass EMC/EMI interference most likely started their life as cheap bulbs from overseas, these companies that test a batch of LEDs (most likely at little cost) from a Chinese supplier then use that compliance to justify every subsequent bulb sold at an some elevated price to feed their disgusting corporate profits.
- Epistar Cob, 80 cents
For someone who want to install once and not worry about the bulb for 10 years then great, spend $20.
frankv: I think it's actually the opposite...
Phillips contracts someone in China to make bulbs at (say) $10 a shot, with high quality standards. The ones that fail the testing are supposed to be destroyed, but are in fact on-sold to some third party for (say) $1 each. These are then retested to a lower standard (i.e. do they appear to work adequately?). If they pass this, they're sold at $5 a shot.
In this scheme of things, you can perhaps guarantee that any cheap bulb will NOT meet Phillips' standards. They may still be adequate for your standards, or not.
The extra $15 you pay to Phillips is for the guarantee. And Phillips' profits.
Some further testing I did confirmed
a) the plastic on the led base is of the non flammable type, it bubbled but never held a flame