| General > General Technical Chat |
| The "magic Smoke" LED light |
| << < (6/6) |
| mengfei:
Better be safe & get either a Philips or Osram even though their 5X the price coz their worth it. |
| GreyWoolfe:
I recently bought a box of Ecosmart 60W equivalent bulbs for our bedroom. All in simple lamps, no enclosures. We do have a smoke alarm! SWMBO and I really do like the light over the CFL bulbs we had and the fact the cost was half of the equivalent Cree bulbs. I will be looking at them regularly for signs of the magic smoke ready to escape. |
| electr_peter:
--- Quote from: innkeeper on September 15, 2017, 07:40:09 pm --- --- Quote from: Sal Ammoniac on September 15, 2017, 06:58:12 pm ---Was the bulb in a fully recessed ceiling fixture? If so, was the bulb rated for that? I'm begun to replace all of the incandescent flood lights in all of my house's ceiling fixtures (about 30 of them) with LED bulbs and am concerned about the failure modes of these bulbs. When incandescent bulbs fail, they just pop their filament and that's it--no melting of the bulb housing. LEDs tend to fail more spectacularly and I'm not sure that I trust them not to start a fire. :palm: --- End quote --- The bulb was rated for a recessed fixture also rated indoor outdoor and dimable. I actually had it in a ceiling fan, in one of the fluted glass fixtures to shine light in the area the kids play. --- End quote --- I am have had mixed experience with CFL and LED lights. IMHO lighting fixtures should have holes/ventilation otherwise it gets too hot for LEDs or CFL bulbs. Some energy is wasted, overtime it heats up air, air rises, gets hotter and hotter... Ventilation is important if light is turned on for prolonged periods (1h or more). |
| james_s:
--- Quote from: Brumby on September 15, 2017, 07:10:55 am ---It's sights like that which give me nightmares..... With the old-fashioned incandescent, this sort of fire risk was just not an issue. Yes, it did have its issues, but nothing quite like this. Same for CFLs. --- End quote --- It's not a fire risk. Some components burned up, rather spectacularly, but the materials are loaded with fire retardants and will not sustain a flame. Old fashioned incandescent bulbs started fires on a regular basis, not through any malfunction of the bulb itself but because in normal operation they get hot enough to ignite flammable materials. *edit: Dammit, I just realized this is an ancient thread bumped by a spammer. |
| SL4P:
Those heatsink fins are only good if there’s somewhere for the heat to go… In that glass shroud, the enclosed air will heat up over a couple of hours, then the heatsink goes hyper, no escape for the generated heat. Possibly the wrong light for the wrong fitting. |
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