[FONT=Verdana, Arial, Helvetica, sans-serif]Lamp Type[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]Watts[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]Lumens/bulb[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]Total efficiency[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]Fluorescent Bulb[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]40watt[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]3000lumens[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]Mercury Vapor[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]175watts[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]8000lumens[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif] [/FONT][FONT=Verdana, Arial, Helvetica, sans-serif]Metal Halide[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]400[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]36000[/FONT][FONT=Verdana, Arial, Helvetica, sans-serif]lumens[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]High P. Sodium[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]400[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]45000[/FONT][FONT=Verdana, Arial, Helvetica, sans-serif] lumens[/FONT] [FONT=Verdana, Arial, Helvetica, sans-serif]Notice the Mercury Vapor lamps are less efficient than the fluorescent (FL), and can not be positioned as close to the plants, so the plants will not be able to use as much of the MV light. The light distribution is not as good either. MV lamps simply are not suitable for indoor gardening. [/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Use fluorescent, MH, or HPS lamps only.[/FONT]