On Sunday, 11 August 2019 13:13:08 UTC+1, alan_m wrote:
On 11/08/2019 11:06, DerbyBorn wrote:
NT:

Why do people buy light fittings with bulbs they can't change?


If there are no user - servicable parts then hatches and seals, etc are not
needed and the cost should be lower.


With LED (and previous energy saving) technologies the electronic parts,
including the LED, need to be kept cool. Traditional light bulb
shapes/fittings are not the best of environments to keep the electronics
cool. More modern LEDS lights may have circuits that monitor
temperatures and reduce the light output in order to maintain lower
temperatures. With many LED floodlights the LED is directly bolted to
the metal casing which acts as a large heat-sink.

The extra cooling is a useful feature, but it should not eclipse the far more useful feature of bulb replacement costing £3 not £70.


NT