15 Watt Corn LED Light Bulbs E26 Base (150 Watt Equivalent Incandescent Light Bulb),3000K Soft White Medium Base 120 Volt 1650 Lumens 360 Beam Angle Outdoor Indoor Lighting - 1 pack

usage Each watt's best use of the range of about 3 square meters. 1 watt LED Equivalent about 2 watt compact fluorescent lamp or 10 watt incandescent light bulb and halogen light bulb. 1 watt LED Equivalent about 100 - 110 Lumens. So the use of the 7watt range is about 15 to 20 square meters. use of the 9watt range is about 20 to 25 square meters. use of the 11watt range is about 25 to 30 square meters. use of the 15watt range is about 32 to 36 square meters. use of the 20watt range is about 40 to 45 square meters. use of the 28watt range is about 56 to 62 square meters. use of the 36watt range is about 72 to 77 square meters. use of the 45watt range is about 90 to 96 square meters. at home you can use 9 watt to 15 watt,other wattage can be used in the street lamp, factory, path, porch, factory, work, shop, warehouse, garden, backyard, It is recommended to use the height is 4 m, Please according to their own needs to choose. If you have any of our products quality problems, please contact us.