25 Piece IP PL-L 24W/830/4P Same as Philips 345058 24W 4 Pin 2G11 Base 3000K | eBay
Philips 345058 Dimmable Long Non-Integrated Linear Compact Fluorescent Lamp, 24 W, G24D-2/4-Pin 2G11 Linear CFL Lamp, PL-L Shape, 1800 Lumens | State Electric
Pisces 24w (watt) PLL Replacement UV Bulb Lamp for Pond Filter UVC | DIY at B&Q