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Satco S6506 4100K 40-Watt 4 Pin T9 Circline Lamp, Cool White

4.7 out of 5 stars 102 ratings

Currently unavailable.

We don't know when or if this item will be back in stock.
Brand Satco
Light source wattage 40 Watts
Item dimensions L x W x H 40.6 x 40.6 x 2.9 centimetres
Colour Temperature 4100 Kelvin
Item weight 0.8 Pounds

About this item

  • 18000 Average rated hours
  • 40-Watt 4 pin circline lamp
  • 4100K cool white
  • Country of Origin: China

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Product description

The glass tube of a fluorescent lamp is filled with a gas containing argon and mercury vapor. The interior wall of the tube is coated with a paint known as phosphor. At each end of the tube, electrodes send electrons through the gas causing it to emit ultraviolet light as the ultraviolet light passes through the phosphor coating, it is converted into a longer frequency to create visible light. The glass tube of the bulb prevents the harmful UV rays from escaping. Fluorescent lamps are more efficient than incandescent lamps because less energy is converted to heat. Instead, most of the energy used creates visible light.


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4.7 out of 5 stars
4.7 out of 5
102 global ratings
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LXXV
5.0 out of 5 stars Easy install, bright, good value.
Reviewed in the United States on 31 December 2020
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Kevin D.
5.0 out of 5 stars It's a lightbulb
Reviewed in the United States on 7 October 2020
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PenName NJ
5.0 out of 5 stars Works well
Reviewed in the United States on 20 May 2020
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David Clark
5.0 out of 5 stars Thumbs up!
Reviewed in the United States on 7 November 2020
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Jason Johnson
5.0 out of 5 stars Great value
Reviewed in the United States on 22 October 2020
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