Want to replace incandescent bulbs with brighter LED
Has anyone tried these and if so are they really as bright as they claim?
Forum Discussion
I received my pack of 20 warm white LEDs. All 20 work. We like the color and brightness of the warm white.
From my testing:
They are non-polarized. You can plug them in either way
They can all tolerate 11.5V to 15.0V
Current is independent of voltage but dependent on temperature. At room temp they all start at 320mA. As they warm up the current dropped and settled at 260mA. I tortured tested one by wrapping it in a cloth and tightly wrapped it in a plastic bag. After 15 minutes it became seriously hot and the current dropped to 215mA. I don't have a way to accurately measure temperature so seriously hot is all I can say. However, all LEDs on that panel continued to light and the current returned to 260mA as it cooled back to nominal operational temperature.
I started a 14V burn-in test yesterday on the one I tortured. It's still operational after 24hrs drawing 260mA. I'll let this run on my bench for at least a few more days.
One thing I did discover is they don't make good contact when you plug them into the socket to far. I found the best approach is with power on, push it into the socket all the way until it goes out and then pull it out a little until it comes back on. All 20 behaved the same way.
From my testing:
They are non-polarized. You can plug them in either way
They can all tolerate 11.5V to 15.0V
Current is independent of voltage but dependent on temperature. At room temp they all start at 320mA. As they warm up the current dropped and settled at 260mA. I tortured tested one by wrapping it in a cloth and tightly wrapped it in a plastic bag. After 15 minutes it became seriously hot and the current dropped to 215mA. I don't have a way to accurately measure temperature so seriously hot is all I can say. However, all LEDs on that panel continued to light and the current returned to 260mA as it cooled back to nominal operational temperature.
I started a 14V burn-in test yesterday on the one I tortured. It's still operational after 24hrs drawing 260mA. I'll let this run on my bench for at least a few more days.
One thing I did discover is they don't make good contact when you plug them into the socket to far. I found the best approach is with power on, push it into the socket all the way until it goes out and then pull it out a little until it comes back on. All 20 behaved the same way.
