PARMIDA 20-Pack LED T8 Hybrid Type A+B Light Tube, 4FT, 18W (40W Replacement), Clear Cover, Single-End OR Dual-End Powered, 5000K (Day Light), 2200lm, Works with/Without Ballast, UL

Customers find the LED light bulbs bright with high lumen output, easy to install, and of good quality, appreciating their value for money. The functionality and compatibility receive mixed feedback - while some report they work great and can be used in any fixture, others say they don't work with ballasts. Durability and ease of use also get mixed reviews, with some reporting broken bulbs and issues with wiring.