It was bought in about November 2015 when the rumour was that incandescent bulbs were being phased out. I was buying fireworks at the time and noticed them as I passed a display unit designed to kick start their sale.
It has been on / off for something like 3,400 days at roughly six hours per day meaning that it has lasted about 21,000 hours. That's not bad given they were new to market. More modern ones are said to last up to 36,000 hours according to the claim on the replacement.
A few quid well spent... and a big saving on electricity thrown in.