If we can for a moment digress from light bulbs, I have had recently some experience with (el-cheapo) led panels, those that can be inserted in ceilings (false ceilings), they can be either round or square and are typically 12 W (around 17 cm diameter) and 18 W (around 22 cm in diameter), there are even larger ones (24 W/30 cm diameter).
They make a very good amount of light, like 1100 lumens for the 12 W and 1650 lumens for the 18 W, and have a separate "led driver", constant current, 280-300 mA, voltage 36-72 V for the 12/18 W driver and 54 - 96 V for the 18/24 W driver.
They can be found everywhere for anything between 4 and 10 Euro each.
It is now three years I installed some 60 of them (in a restaurant/hotel, think no less than 10 h/day on for 300 days/year) and 15-20% of them failed in the last few months.
In ALL of them the faulty part is the "driver" (which basically is a transformer and a rectifier plus a current limiting chip and a capacitor, which seemingly is the actual component that always fails[1]), spares (a new driver) can be luckily be found for 2 or 3 Euro each, the actual leds are perfect.
I cannot see why it is not in production a male/female E27 attachment containing a "driver" and a "driverless" bulb to match.
The amount of electronics thrown away would at least halve.
They make a very good amount of light, like 1100 lumens for the 12 W and 1650 lumens for the 18 W, and have a separate "led driver", constant current, 280-300 mA, voltage 36-72 V for the 12/18 W driver and 54 - 96 V for the 18/24 W driver.
They can be found everywhere for anything between 4 and 10 Euro each.
It is now three years I installed some 60 of them (in a restaurant/hotel, think no less than 10 h/day on for 300 days/year) and 15-20% of them failed in the last few months.
In ALL of them the faulty part is the "driver" (which basically is a transformer and a rectifier plus a current limiting chip and a capacitor, which seemingly is the actual component that always fails[1]), spares (a new driver) can be luckily be found for 2 or 3 Euro each, the actual leds are perfect.
I cannot see why it is not in production a male/female E27 attachment containing a "driver" and a "driverless" bulb to match.
The amount of electronics thrown away would at least halve.
[1] See: https://www.youtube.com/watch?v=mS0Jetfw4vA