Anyone swap their globes to LED in enclosed light fitting ?
Does it last long ?
I tested 1 LED on downlight within enclosed cover and it only lasted 3wks.
Any chance for LED globes to survive in ceiling light below ?
https://www.bunnings.com.au/luce-bella-40cm-frosted-glass-ce…
Huh? It was his "test"
A 3 week long test…. sounds weird.
Don't know why OP wouldn't just put in a normal low-profile LED bulb.
It failed after 3 weeks…
@HighAndDry: the philips led stated not for enclosed fitting
so i wanted to know if that is the case and how long it would last (yeah i know it sounds dumb but who wants exposed globes all around their house)
@dcep: Ah, ok that makes more sense. While LEDs don't put out that much heat, maybe these were designed to rely on ambient/convection airflow for most of its cooling and so can't operate in that enclosed fitting? Or as others have said, dud LED is also possible.
the downlight is semi recessed with frosted cover similar to below
https://sparksdirect.scdn5.secure.raxcdn.com/image/cache/dat…
I stand corrected, he appears to be saying he wants to replace all his downlights with LED downlights…
Yes. Why would it not survive? Your test downlight was probably a dud.
I'd think it might have been a dud LED bulb at 3 weeks. Bulb failure in an enclosed fitting is usually a heat issue, and LED bulbs don't generate much heat.
The light in the pic has plenty of air gap between the glass and the base and should be fine. Generally stick to name brands in LEDs if you hope to get the claimed rated hours out of them, Phillips, Osram or similar. Phillips are regularly half price at woolworths, if it dies in 3 weeks take it back, it should do better than that.
Say you get 120 lumens per watt from your LED.
Visible light spectrum is around three times that, with a similar figure for invisible IIRC.
So at least 5/6 of input energy is output as heat?
LEDs, & driver electronics, suffer from heat stress - as do we ;-)
Some LED lights might include a temperature sensor (Samsung?) & scale down output.
Still no/reduced light due to failure/protection :-(
What is the point of putting a downlight behind a protruding cover? The advantage of a downlight is that it sits flush on the ceiling. Perhaps look at a fluro or general light LED turned sideways.