Philips leads the industry with the lowest level mercury technology. Reducing the mercury level (source reduction) during the manufacturing phase is essential to creating products that are less harmful to the environment. F96T8 59W/841 Single Pin ALTO Plus 1LP. Base Information: Green Base - Bulb: T8 - Color Code: TL841 [CCT of 4100K] - Color Rendering Index: 85 Ra8 - Color Designation: TL841 - Color Temperature: 4100 K - Initial lumen: 5900 Lm - Design Mean Lumens: 5490 Lm - Mercury (Hg) Content: 4.4 mg - Picogram per Lumen Hour :33 p/LuHr.