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3 ways 2-circuit led bulb/socket

A generic image

E26 3-way 2-circuit two filaments led bulb, 3 way led bulb for 3-way 2-circuit switch Socket Interior. A really 3 way light bulb has two filaments, a low and a high wattage one, and the switch has 4 positions: Off, Low, High, Both. If you hope finding good 3-way LED bulb in three-way socket desk lamp which has 3 way turn knob socket switch, First must to know how a 3 ways light bulb work with 3-Way Turn Knob Lamp Socket.  The animation below shows you how a 3-way 2-circuit switch socket works with a 3 ways led bulb. 

3 ways led bulb vs Scene switch LED Bulb vs 3-step dimming LED bulb

How do I finding good 3 ways led bulb in 3 ways desk lamp which has 3 ways turn knob switch socket?

A 3-way lamp requires a 3-way bulb and 3 ways socket, and a 3-way switch, Or 3 way socket which has 3-Way Turn Knob switch Interior.
The switch used to control a 3-way lamp is usually a rotary switch or a pull-chain switch. Although it is referred to as a 3-way switch, it has four positions, off, lamp one (low), lamp two (medium), and lamps one and two (high). When properly connected to a 3-way socket containing a 3-way bulb, this switch will first power one filament, then the other filament, then both, then return to the off position. To do this, the switch must be capable of operating two different circuits. Internal to the switch there are two sets of switch contacts that are not connected electrically, but which are connected mechanically in such a way that they operate together as shown in this table.
Lamp function      Switch one    Switch two
Off                                  Off    Off
Low, lamp one                 On    Off
Medium, lamp two           Off    On
High, lamps one and two  On    On

Below image is a real E26 3 way 2 circuit two filaments replacement, E26 3 way 2 circuit two filaments led.

(image for) E26 A22 bulb 3 way led bulb 4W-8W-14W E26 3 way 2 circuit two filaments replacement, E26 3 way 2 circuit two filaments led., E26 3-way 2-circuit two filaments bulb for hotel bedroom

E26 A22 bulb 3 way led bulb 4W-8W-14W E26 3 way 2 circuit two filaments replacement, E26 3 way 2 circuit two filaments led., E26 3-way 2-circuit two filaments bulb for hotel bedroom

E26 3-way 2-circuit two filaments A22 bulb, 3 way led bulb 6W-8W-14W for desk lamp which has 3-Way Turn Knob Lamp Socket Interior. Most...

$7.79
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(image for) E26 3-way 2-circuit two filaments A23 led bulb 5W-10W-15W E26 3 way 2 circuit two filaments replacement, E26 3 way 2 circuit two filaments led for bedroom lamp 12V 24V 36V 48V AC100-277V

E26 3-way 2-circuit two filaments A23 led bulb 5W-10W-15W E26 3 way 2 circuit two filaments replacement, E26 3 way 2 circuit two filaments led for bedroom lamp 12V 24V 36V 48V AC100-277V

E26 3-way 2-circuit two filaments A23 bulb, 3 way led bulb 5W-10W-15W for 3-Way Turn Knob Lamp Socket Interior. Most application in hotel and...

$7.99
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(image for) E26 3-way 2-circuit two filaments A21 bulb 3 way led bulb 4W-8W-12W for 3-way 2-circuit switch Socket Interior. 12V 24V 36V 48V AC100-277V

E26 3-way 2-circuit two filaments A21 bulb 3 way led bulb 4W-8W-12W for 3-way 2-circuit switch Socket Interior. 12V 24V 36V 48V AC100-277V

E26 3-way 2-circuit two filaments A21 bulb, 12W 3 way led bulb for 3-way 2-circuit switch Socket Interior. Most application in hotel and bedroom. it...

$7.49
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(image for) E26 3 Way Lamp Socket Replacement, 3-Way Turn Knob Lamp Socket, 3-way 2-circuit switch socket for 3-way LED bulb Black Phenolic, cUL Listed

E26 3 Way Lamp Socket Replacement, 3-Way Turn Knob Lamp Socket, 3-way 2-circuit switch socket for 3-way LED bulb Black Phenolic, cUL Listed

E26 3 Way Lamp Socket Replacement, 3-way lamp socket with turn knob switch, Phenolic Shell 3-Way Turn Knob Lamp Socket for A Tri-light bulb...

$1.28
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*Mixed OFF
(image for) E26 3-way 2-circuit two filaments A19 LED bulb 8W 3 way led bulb for 3-way 2-circuit switch Socket Interior. 12V 24V 36V 48V AC100-277V

E26 3-way 2-circuit two filaments A19 LED bulb 8W 3 way led bulb for 3-way 2-circuit switch Socket Interior. 12V 24V 36V 48V AC100-277V

E26 3-way 2-circuit two filaments A19 bulb, 8W 3 way led bulb for 3-way 2-circuit switch Socket Interior. Most application in hotel and living...

$6.49
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(image for) 3 Way Lamp Socket Replacement, E26 Medium Screw Base 3-Way Turn Knob Lamp Socket, 3-way 2-circuit switch for 3-way LED bulb, cUL Listed, Bronze golden 3-way lamp socket with turn knob switch

3 Way Lamp Socket Replacement, E26 Medium Screw Base 3-Way Turn Knob Lamp Socket, 3-way 2-circuit switch for 3-way LED bulb, cUL Listed, Bronze golden 3-way lamp socket with turn knob switch

3 Way Lamp Socket Replacement, 3-Way Turn Knob Lamp Socket, Nickel Finish, 3-way lamp socket with turn knob switch for 3 way bulbs which...

$1.58
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