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Product features

  • 【ENERGY EFFICIENT】The 3-way A21 50/100/150 Watt equivalent Lighting LED light bulb provides 85% reduction in energy usage. Only costs 1.69/year to operate at 3 hours per day. Much more efficient than traditional light bulbs.
  • 【INSTANT ON 3-WAY LIGHTING】No warm-up time required, these 3-Way LED bulbs will turn on with full brightness instantly. When paired with a 3-Way socket(not included), the 3-Way A21 bulbs can produce three lightness levels.(800/1500/2200LM)
  • 【SAFE & COMFORTABLE LIGHTING】UL Listed, Mercury and Lead-free, no UV or IR radiation. CRI 80+, flickering-free, NVF<10% and zero harsh glares prevent eye fatigue and provide a comfortable, stress-free atmosphere. These LED light bulbs are ideal for table lamps and floor lamps with 3-Way socket/switch.
  • 【LONG LIFESPAN】These YAMAO 3 way A21 LED bulbs last 20x longer than incandescent bulbs. Each light bulb is expected to deliver a lifetime of over 22 years (average usage rate of 3 hours per day), saving you the cost of bulb replacement.
  • 【2-YEAR WARRANTY】YAMAO offers 2-year warranty time. If you have any questions about the light bulb, please feel free to contact us.

Product Description


Light Bulb Type: 3-way led light bulb A21

Color Temperature: 2700K (Soft white)

Wattage: 50/100/150W Equivalent

Voltage: 110-240V AC

Light Bulb Base Type: Medium E26 Screw Base

Color Rendering Index (RA): 80 + (vivid and natural light)

Material: Die-casting Aluminum + PC (Good heat dissipation)

Average Life (hours): 30,000 hours

Package: 2 Pack


With each click of the switch, the LED bulb will cycle between off, 50w, 100w, and 150w equivalent brightness 

using only a fraction the power needed compared to an incandescent or halogen bulb.


LED bulbs are instant on. No warming up, no noise, just full brightness at the flick of the switch.


YAMAO’s A19 bulbs are rated at 30,000 hours. No more pole changers, dangerous ladders, 

or scaffolding to reach difficult to reach light fixtures.


UL listing insures you’re getting safe, properly designed and manufactured products. National Electrical Code (NEC), 

requires the use of UL listed products.



Indoor lighting, hotel, meeting room, offices, hospital, schools, factories, museum, shopping malls, supermarkets, etc



  1. Cut off the power supply before installation..

  2. Keep away from direct sunshine and too high temperature.

  3 . If any doubt about the installation or use of this product, consult a competent electrician.


Free 2-year product warranty is offered to our customers.

If you have any question, email us and you will get a satisfactory reply within 24 hours.

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