Poundland 3V LED filament lamp with heavy base.

At £5, this is worth getting for the parts. It has lots of potential for being hacked for powering with USB (with series resistance) or a solar garden light module.

The lamp itself has four filaments with 15 LED chips in each, so a total of 60 LEDs in parallel that start lighting at around 2.4V, and pass 100mA at around 2.7V. That's a decent brightness, so the use of a USB cable with two 10 ohm resistors would make this a very useful off-grid ornamental light.
Running the lamp at that low current will also give it a very long lifespan.

At a full 3V the current increases to 450mA (about 1.5W) so on fresh alkaline cells or freshly charged NiMh cells this will put out quite a lot of light.

The ceramic base with glued-in threaded insert means it could also be retrofitted with other low power and low voltage bulbs for variety.
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Видео Poundland 3V LED filament lamp with heavy base. канала bigclivedotcom