Ordered several at the end of July 2018. One already burned out. Lifespan of 11 years with daily use of 3 hours. Hasn't been used much. Even if it's running 24/7, it shouldn't burn out anytime soon. Installed once and never moved again. Of course, he died shortly after the one-year warranty expired.
TCP CFL Double Circle Lamp, 200W Equivalent, Bright White (3500K) T6 Circline Bulb
8 Review
π‘ Compact Fluorescent Light Bulb T2 Spiral CFL - 4100K Cool White, 13W (60W Equivalent) - Pack of 2
6 Review
π‘ Feit Value Pack 13w=60w Soft White CFL EcoBulbs - Save Energy with this Convenient 1 Box Bundle
5 Review
Sylvania 20318 Compact Fluorescent 4 Pin Single Tube 4100K, 13-watt: Efficient Lighting Solution for Any Space
10 Review
Bulbrite A19 Solana WiFi Connected LED Alexa Smart Light Bulb, Single-A19, Tunable 2200K-6500K Color Temperature, Frost Finish
28 Review
20 Pack 5CCT 4FT LED T8 Ballast Bypass Type B Light Tube, UL/FCC Certified - 18W, 2300Lm, 3000K-6500K Selectable
21 Review
Luminescent lamp Camelion 11066 ultraviolet, E27, 26 W
12 Review
Lamp LED Ergolux 13638, E27, A60, 15 W, 4500 K
12 Review