SATCO Lighting S21339 8W BT15 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$6.21

SATCO Lighting S21339 8W BT15 LED, White, Medium Base, 90 CRI, 5000K, 120V

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Model: S21339
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$6.21
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SATCO Lighting S21339 8W BT15 LED, White, Medium Base, 90 CRI, 5000K, 120V

8 Watt BT15 LED - White - Medium base - 90 CRI - 5000K - 120 Volt

Manufacturer Resources

Product Specs

Product Group:
Indoor Lighting
Product Subgroup:
Light Bulbs
Product Weight:
0.055 lb
Dimmable:
Yes-Dimmable
Lumens:
800L
Product Material:
Glass / Nickel Plated Aluminum
CRI:
90+

Satco Lighting S21339 – Frequently Asked Questions

1) What color light does the Satco S21339 BT15 LED bulb put out?
The S21339 is a 5000K LED, which is daylight white, not a warm or soft white. It also carries a 90 CRI rating, so colors render closer to natural light than a typical 80 CRI lamp. Good pick for stairwells, laundry rooms, garages, and work areas where you want crisp light. If you're matching an existing fixture that runs 2700K or 3000K, this bulb will read noticeably cooler and won't blend.
2) How much power does the 8 watt BT15 LED draw compared to the incandescent it replaces?
The Satco S21339 draws 8 watts at 120 volts. For a property manager swapping fixtures across a building, that's the number to run against your existing lamp load when you budget the retrofit.
3) Why would I spec a 90 CRI lamp instead of a standard LED for a facility?
90 CRI matters wherever people judge color: healthcare exam and patient rooms, retail displays, hospitality corridors, paint and finish work, and anywhere an inspection happens under the light. Standard commercial LEDs commonly sit around 80 CRI, where reds in particular flatten out. The S21339 pairs that 90 CRI with 5000K daylight output, so it's aimed at task and inspection spaces rather than warm ambient lighting.
4) Can I order the Satco S21339 in a different color temperature or finish?
The S21339 is built one way: white finish, 5000K, 90 CRI, 8 watts, medium base. There is no second finish or alternate Kelvin under this part number. If your job needs a warmer temperature, you're looking at a different Satco part number, not an option on this one.
5) Is the Satco S21339 clear or frosted?
White. The envelope is coated rather than clear, so the filament or LED array isn't visible and the light diffuses. If you want the exposed-filament look for a decorative fixture, this isn't that lamp.
How fast can I get the Satco Lighting S21339 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Satco Lighting S21339 come with a warranty?
Absolutely. The Satco Lighting S21339 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Satco Lighting S21339?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Satco Lighting S21339 from ZenSupply?
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