| General > General Technical Chat |
| Enclosed bulb hot environment, CFL or LED better |
| << < (3/6) > >> |
| Alex Eisenhut:
I feel like complaining about those corn cob LEDs sold as "microwave oven" bulbs for over-the-range models. The bulbs are not only enclosed, but subject to extra heat and humidity from my sausages. They don't last a year. They're brighter than incandescent bulbs but much more expensive. I wonder why there can't be a reliable solution for this application. I hope new ovens have LEDs form the factory, because that little trap door arrangement SUCKS. |
| james_s:
--- Quote from: Rick Law on April 25, 2021, 07:29:23 pm ---I am of the same mind... That they are lower wattage nominally should by itself has an impact. The CFL's perceived lumens seem to drop fairly fast. I could use a 480lm (40 watts) instead of a pair of 600lm (14 --- End quote --- The lumen output depreciates pretty significantly in the first 100 hours, prior to which a reputable one should be producing more than the rated lumens. After that initial period they settle in and the output declines over a much more gradual curve. |
| joseph nicholas:
You did not mention if the original bulbs were the same as the proposed replacements. |
| Rick Law:
--- Quote from: joseph nicholas on April 26, 2021, 12:28:51 pm ---You did not mention if the original bulbs were the same as the proposed replacements. --- End quote --- I am currently on CFLs. Attempted LEDs once about 3-5 years ago - they lost lumens rather quick. When they went kaput I switched back to the CFL since. Next round, I am going to switch to LEDs again hoping changes in the last 3-5 years made them better. I am equipped with a lux meter these days, I will fix a "consistent way" to measure so I have an objective gauge rather than subjective recalled perceptions. |
| james_s:
--- Quote from: Rick Law on April 28, 2021, 01:36:29 am ---I am currently on CFLs. Attempted LEDs once about 3-5 years ago - they lost lumens rather quick. When they went kaput I switched back to the CFL since. Next round, I am going to switch to LEDs again hoping changes in the last 3-5 years made them better. I am equipped with a lux meter these days, I will fix a "consistent way" to measure so I have an objective gauge rather than subjective recalled perceptions. --- End quote --- Look for some that are rated for use in enclosed fixtures. Lumen depreciation should be negligible on a good LED bulb. About a year ago I took the Philips LED bulb that I installed in my porch light in 2011 and tried it side by side with a NOS identical lamp that never got used, they were indistinguishable. That porch light runs dusk till dawn 7 days a week, average around 12 hours a night. |
| Navigation |
| Message Index |
| Next page |
| Previous page |