Your Lighting Company maintains a repair department for all heating and cooking appliances. Telephone Sales Department. ELECTRIC LAMPS Mazda lamps are the most efficient lamps obtainable and their use is recommended for all classes of service. Your electric bills depend upon the watts per lamp and the number of hours of use. Note in the following table that the Mazda lamps give on the average two and one-half times as much light for the same cost as the Gem carbon lamps. The column "Cost of current per month" gives the cost of burning one lamp one hour per day for one month at the maximum rate of nine cents per K. W. H. Table of Comparisons _Gem_Carbon_Lamps_ _Mazda Lamps_(Type_B_) Cost of Cost of current per current per Watts C.P. month in cents Watts C.P. month in cents 30 12 8.1 10 8 2.7 50 20 13.5 25 23 6.7 80 32 21.6 40 38 10.8 60 60 16.2 100 105 27.0 RESIDENTIAL LIGHTING In most cases the following recommendations of Mazda lamp sizes will be found most satisfactory in the home. Frosted lamps are recommended wherever the direct rays of the lamp may strike the eye, as the frosting diffuses the light. Parlor 1-Bracket chandelier 1--60 watt 2-Bracket chandelier 2--40 watt 3-Bracket chandelier 3--25 watt Side wall fixtures for decorative purposes--10 watt, all frosted. Side wall fixtures for good general illumination--25 or 40 watt, all frosted. Hall Small hall 1--10 watt Large hall 1--25 watt Porch Ceiling light 1--10 watt Side bracket 1--25 watt If used for reading light 1--60 watt Bedroom Ceiling light 1--40 watt Side bracket 1--40 watt _or_ 2--25 watt Sitting-room Same as parlor. A well shaded reading lamp with a 40 or 60 watt all-frosted bulb. Dining-room Dome 1--60 watt bowl frosted 2 or 3 light shower 25 watt bowl frosted Semi-indirect 1--60 or 100 watt clear Bathroom Ceiling or side brackets 25 watt Kitchen Ceiling light 1--40 or 60 watt bowl frosted Side bracket over sink 1--25 watt bowl frosted Attic 25 watt Cellar In installing lamps for the cellar the time they are lighted should be borne in mind. As this is short, the expense of running larger lamps--25 watt and 40 watt--is insignificant. The following locations should be provided for: Bottom of cellar stairs 25 watt Work bench 40 watt Laundry 40 watt Vegetable and fruit cellar 25 watt Lamp in front of furnace 60 watt This latter lamp is usually close enough to also illuminate the coal bin. Care of Lamps and Fixtures