On 03/06/10 19:28, Tony Duell wrote:
Why isn't something similar done now. Have an
adapter containint eh
electronics which lasts for a long time, and just replace the fluorescent
tube when it fails?
Profit.
The Engineer Says: "I just made a lightbulb that lasts a million hours!"
The MBA Says: "NO! Don't tell ANYONE about it. It'll kill the sales of
our existing two-thousand-hour-lifetime products!"
The Engineer Says: "What if we split the tube from the ballast? Then if
one fails, the customer can keep the other, working bit?"
The MBA Says: "People don't want to buy two separate parts. Also it's
more profitable if they have to swap the whole thing."
I used to have a couple of first-gen "energy saver" fluorescent bulbs
that were sent to me by (IIRC) National Power as part of some promotion
or contest. They were two-piece units -- you had the screw or
bayonet-fit ballast, and a separate, removable (via a 4-pin plug and
latch arrangement) fluorescent tube. So when the fluoro tube died, you
just bought a new one and swapped it over. Equally you could buy a new
ballast, but only as part of a set with a new tube...
I haven't seen anything like this for ages -- the Philips Softone bulbs
are one solid, welded unit (they're built like laptop PSUs, no screws at
all), and so are the GE energy-saver lamps if memory serves.
I wonder how many "broken" bulbs get chucked in the bin that could be
resurrected with either a new light or a new ballast. Seems they could
be refurbished fairly easily if they were designed as modular units...
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/