ST40 Zig Zag Edison 7 Watt C9 (E17) nickel base light bulbs are 1.5" wide by 3.25" tall. G50 Spiral Edison 7 Watt C9 (E17) nickel base light bulbs are 2" wide by 2.75" tall.
G60 Lantern Edison 7 Watt C9 (E17) nickel base light bulbs are 3" wide by 3.75" tall. Heavy Duty 18 gauge SPT-1W outdoor wire (959 watts max).
Commercial Sets Has Intermediate C9 (E17) sockets spaced every 15 inches. Maximum wattage of 1200 watts (10 Amps) total. Manufactured with high quality UL tested wire, plugs and sockets. Long life 3,000 hour Edison light bulbs feature filament. Length of wire from plug to the first light bulb is 6 inches, Indoor and outdoor use.