Check the listing for details. 3 way 2 circuit rotary switch 1 1/8" nipple TR-300. Condition: New. Listed at 3.76 USD. 3-way (2 circuit) canopy switch- works with 2 separate sockets. When installed properly will operate one light, then other light, then both, then off....or this will operate a 3-way light bulb. Hex nut and knurled washer are included. This has a 1 1/8" nipple extending out, but we also have 5/8" or 3/8". (Instructions below.) Outside pipe diameter is 3/8" (1/8 IPS). Rated: 3A 250VAC 6A125VAC 3A125VL Knob is not removable. We combine with other items to save shipping costs $3.76 each. Shipping is $3.88 plus $.15 for each additional switch. Combined shipping- to get cheapest shipping costs (when buying different items) please buywhat you need (WITHOUT SHOPPING CART) and “request invoice” (BEFORE YOU PAY) so we can send invoice with lower shipping costs. SHOPPING CART DOES NOT SEEM TO WORK FOR COMBINED SHIPPING. Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 How to wire 3-way rotary switch (with 2 or more sockets): -Black wire on switch goes to smooth wire from plug. -Red wire on switch (comes on first) goes to black wire (or gold screw on first light). -Blue wire on switch (comes on second) goes to black wire (or gold screw on second----and third light if you have that) -Ribbed wire from plug goes to white (or silver screw on all lights) ---------------------------------------------------------------------------------------------------------- How to wire for 3-way keyless socket 1. Main wire with plug. Smooth side and opposite side has a very subtle ridge. Smooth side goes to black switch wire. Ribbed goes to silver screw on socket. 2. Switch: Red wire to black screw on socket Blue wire to gold screw on socket