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SWITCH100 A21 LED - 21 Watt - Clear

Item #: SWITCH100-C

List price: $65.99

Our price: $49.95 You save $16.04 (24%)

One of the most highly anticipated LED bulbs of 2013. This dimmable A21 LED bulb replaces 100-watt incandescent bulbs, while consuming just 21 watts of power!  Omnidirectional, use anywhere you would use a standard incandescent bulb, up, down or sideways. Clear bulb. read more

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Our Price: $49.95


This dimmable, omnidirectional LED bulb replaces the 100-watt incandescent bulb. Use it anywhere you would use a standard light bulb, up, down, or sideways, all while consuming just 21 watts of power! SWITCH100 can be used in dry or damp environments and in nearly any fixture, including recessed and enclosed applications — to provide full light wherever needed. It works well with most dimmers, bringing control to light and energy use in each space. Perfect for both residential and commercial applications.

Features & Benefits:

  • Incandescent quality light: Provides the same light distribution and performance as an incandescent bulb.
  • Exceptional design: Stunning visual design that looks as good off as it does on, all within the standard A form factor.
  • LQD Cooling System: Industry leading technology offers up to 40% better thermal performance than standard air-cooled lamps (details below).
  • Reduced energy costs: SWITCH100 uses 80% less energy and lasts 25 times longer than an incandescent.
  • Complete functionality: Instant on, operates in any orientation and with a wide variety of fixtures without compromising bulb life or light performance.
  • Brilliant dimming: Gives you more control over light and energy use. Can be used with a wide variety of dimmers (see "Dimmer Compatibility")
  • Fully certified: Energy Star; UL/cUL listed for damp use; complies with RoHS & FCC CFR 47 Part 15
  • Eco friendly: Uses less energy, lasts thousands of hours, free of hazardous materials.


  • Power Consumption:  21 Watts
  • Replaces: 100-watt incandescent bulbs
  • Input Voltage: 120 V AC
  • Lumens: 1600 Lumens
  • Color Temperature: 4000 K (“neutral white”)
  • CRI: >80
  • Beam Angle: Omnidirectional
  • Lifespan: > 25,000 Hours (MTBF)
  • Construction: Featuring advanced liquid cooling system
  • Weight: 10.6 Ounces
  • Shape: A21 (Edison standard)
  • Base Type: E26 (standard medium base)
  • Annual Energy Cost: $2.40 (Based on 3 hours a day operation, 365 days of the year at $.11 KWh)

Liquid Cooling System:

Switch's breakthrough liquid-cooling technology allows for the bulb to be fully enclosed, unlike most LED bulbs. LQD Cooling System is a blend of two technologies: a cooling liquid that bathes the LEDs inside the bulb, and a highly efficient patented driver. This design cools the LEDs by using the bulb's entire surface to disperse heat. LQD Cooling System uses a liquid silicone that is electrically non-conductive, non-toxic, and colorless. Will not degrade bulb components or harm the environment.

Dimmer Compatibility:

Switch LED bulbs are compatible with a variety of lighting controls from standard residential dimmers to low-voltage electronic devices. Current list of recommended dimmers:

  • Leviton 6633-PL; 6613-PL; 6674-10; IPL06-10; 6615-P0W; VRE06; VPE04; 6161
  • Lutron NLV-1000; RRD-10ND; RRD-3LD; RRD-3PD; MRF-6ND; HQRD-6ND; HQRD-10ND; HQRD-6NA; HQR-3LD; HQR-3PD; SZ-6ND; MRF2-3LD; MRF2-3PD; DVCL-153P; DVSCCL-153P; CTCL-153P; SCL-153P; AYCL-153P; TTCL-100H

General Information about LED Lights:

  • LED stands for "light-emitting diode"
  • 90% more efficient than halogen and incandescent lamps
  • Last much longer than incandescent bulbs (eg 1,000 hrs vs 30,000 hrs)
  • No toxic chemicals. CFLs contain mercury, and LEDs do not.
  • No UV emissions
  • Durable, and shock-resistant
  • Starts up instantly, unlike CFL bulbs
  • Stays cool and does not give off much heat
  • Frequent cycling on/off will not shorten lifespan (unlike CFLs)


Lifetime Manufacturer's Warranty (Residential); 5-Year Warranty (Commercial)


Use this Switch100 LED lamp to reduce energy consumption. It lasts thousands of hours before needing to be replaced. It is free of hazardous materials.

100% Satisfaction Guarantee

We want you to be completely satisfied with every purchase you make. If you are in any way dissatisfied with a product you ordered, we'll exchange it, replace it or refund your money within 30 days of purchase. Simply email us the problem, and we'll take care of you. Certain products have extended warranties (up to 50 years!) that are listed on the particular product page. Please call us at 1-888-451-6752 if you need further clarification.

Additional Information

Weight 10.6 oz.
Color Temperature Neutral White (4000K) Clear bulb
Base Type E26/27 (Standard screw in base)
Beam Angle Omni-directional
Bulb Type LED
Certifications UL/cUL, RoHS, FCC CFR 47 Part 15
Cost to run for one year $2.40
Color Rendering Index (CRI) > 80 CRI
Energy consumption 21 watts
Incandescent Equivalent 100-watt
Light Output (Luminous Flux) 1600 lumens
Operating Humidity Range 20% to 90%
Operating Temperature Range -4° to 113° F (-20° to 45° C)
Lifespan 25,000 hours
Dimensions 4.9" H x 2.3" D
Key Feature Dimmable, omnidirectional A21 LED lamp replaces 100-watt incandescent bulbs

Shipping Information

Shipping Details:
Insured against damage or loss while in transit
This Product Ships To:
US Lower 48
Ships Via:
Fedex or UPS

Questions about the SWITCH100 A21 LED - 21 Watt - Clear

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  • From Geo at 2/6/15 1:27 PM
    • Incondescent bulbs will not take sudden shake or vibration. Such as when used in a shop light. Will LEDs take some shock
    • LED bulbs are much more durable than incandescent bulbs. LEDs are shock resistant and will be well suited to your shop environment.
    • Do you find this question helpful?  Yes  No

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