Not long - ours stopped after 7 months of use - and didn't use it intensively. I wish I had bought a table lamp that uses these hard to find bulbs to start with - wasn't aware at the time. So the first recommendation is not to buy a lamp that uses these bulbs. Second recommendation - try to find a lightbulb that lasts longer, then come back here and let us know which one works!
E12 T22 Low Voltage Edison Bulb LED 12V-24V Vintage Tubular Night Light Bulb 1W 100 Lumen LED Candelabra Light Bulb 2700K 10W Equivalent Small Filament Bulb For RV,Out Door String Lights, Pack Of 25
15 Review
Luminescent lamp Camelion 11066 ultraviolet, E27, 26 W
12 Review
Set Of 4 Geeni Prisma Wi-Fi Multicolor LED Light Bulbs, 1050 Lumens, 2700K, Dimmable, No Hub Required, Compatible With Alexa And Google Assistant, 75-Watt Equivalent
41 Review
Lamp LED Ergolux 13638, E27, A60, 15 W, 4500 K
12 Review
💡 Philips 230425 Energy Saver Compact Fluorescent Non-Integrated 26W PL-C Soft White 4-Pin Base Bulb - Discover Efficient Lighting Solutions
5 Review
💡 Energy-Saving T2 Spiral CFL Bulb, 5000k Daylight, 23W (100W Equivalent), 1520 Lumens, E26 Medium Base, 120V, UL Listed - Pack of 8
7 Review
💡 Compact Fluorescent Light Bulb T2 Spiral CFL - 4100K Cool White, 13W (60W Equivalent) - Pack of 2
6 Review
Philips Alto PL-C Energy Saving Compact Fluorescent 💡 Light Bulb: 1800-Lumen, 3500-Kelvin, 26-Watt, 4-Pin G24-3 Base, Daylight
6 Review