How do I determine the correct amount of wattage to properly illuminate
a 12' by 16' room?
A: To find the proper
ambient lighting for the room, multiply the room dimensions to get
your total square footage (12 x 16 = 192). Then multiply the total
square footage by 1.5 for total illumination needed (192 x 1.5 =
288 watts). So, for a 12 x 16 room, two 150-watt table or floor
lamps would give more than ample light for a room this size (2 x
150 = 300 watts), or an 8-light chandelier with 40-watt bulbs could
create the same ambient lighting effect in a 12 x 16 room (8 x 40
= 320). For specific task lighting within a space, for example,
the light needed on a kitchen work island, multiply the square footage
of the island (8 x 4 = 32 square feet) times 2.5 = 80 watts, or
two 40-watt pendants.