SATCO Lighting S21401 16W LED ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$21.89
Satco Lighting SAT-S21401 16 Watt LED PL 4-Pin - 3500K - 1750 Lumens - G24q base - 50000 Average rated hours - Horizontal - Type A - Ballast dependent

SATCO Lighting S21401 16W LED PL 4-Pin, 3500K, 1750 Lumens, G24q Base, 50000 Avg Rated Hours, Horizontal, Type A, Ballast dependent

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Model: S21401
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$21.89
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SATCO Lighting S21401 16W LED PL 4-Pin, 3500K, 1750 Lumens, G24q Base, 50000 Avg Rated Hours, Horizontal, Type A, Ballast dependent

16 Watt LED PL 4-Pin - 3500K - 1750 Lumens - G24q base - 50000 Average rated hours - Horizontal - Type A - Ballast dependent

Manufacturer Resources

Spec Sheet

Product Specs

Amps:
0.133-0.058A
Avg Rated Hours:
50000
BAA Compliant:
No
Ballasting Requirements:
Ballast required
Burning Position:
Horizontal
CA Web Text:
Lawful for sale
CCT Selectable:
No
CRI:
82
DLC Approved:
Yes
Enclosure Rating:
Enclosed Rated Lamp
FCC Compliant:
Yes
Housing Color:
White
Lamp Base:
G24q (4-Pin)
Lamp Filament:
LED
Lamp Shape:
PL
Lens Finish:
Frost
Lensed:
Yes
Lumens:
1750L
Product Type:
PL
Subcategory:
LED
Technology:
LED
Three-Way:
No
Warranty:
5 Year Limited - 10 hr per day
Product Group:
Indoor Lighting
Product Subgroup:
Light Bulbs
Incandescent Equivalent:
100W
Location Rating:
Damp
Product Voltage:
120V-277V
Beam Spread Angle:
100
Light Temperature:
3500K
Product Category:
Light Bulbs
Product Wattage:
16W
Product Weight:
0.42 lb

Satco Lighting S21401 – Frequently Asked Questions

1) Does the Satco S21401 LED PL lamp need the existing ballast, or do I have to rewire the fixture?
The S21401 is a ballast-dependent (Type A) lamp, so it runs off the existing ballast in the fixture. No rewiring, no ballast bypass. Drop it into a working G24q socket and it lights. If the ballast is dead or dying, the lamp will not work, so a bad-ballast fixture needs the ballast replaced or a different bypass-type lamp.
2) Will a G24q 4-pin LED PL lamp fit a GX24q or G24d socket?
No. The S21401 uses a G24q 4-pin base, which seats only in a G24q socket. A 2-pin G24d socket (magnetic ballast fixtures) and a GX24q socket are different preps and the lamp will not seat correctly. Count the pins and check the base marking on the lamp you are pulling out before ordering.
3) Can this LED PL lamp be installed base-up or base-down, or does it have to be horizontal?
Burning position for the S21401 is horizontal. That suits the typical recessed PL downlight or wall sconce where the lamp sits sideways. For a vertical base-up or base-down socket, choose a PL lamp rated for that orientation instead.
4) Can I use this LED PL lamp in an enclosed or outdoor fixture?
Enclosed fixtures are fine, the S21401 is an enclosed-rated lamp. Location rating is damp, so covered exterior soffits, parking garages, and bathrooms are in scope. It is not wet-location rated, so skip sockets exposed to direct rain or hose-down.
5) Is this Satco PL lamp DLC listed for a utility rebate?
Yes, the S21401 is DLC approved, which is what most utility prescriptive rebate programs require for LED lamp retrofits. It is also FCC compliant. Note it is not BAA compliant and country of origin is China, so it will not satisfy Buy American project requirements.
6) What CFL wattage does the 16W S21401 replace, and how much light does it put out?
It draws 16 watts and delivers 1750 lumens, which Satco rates against a 100W incandescent. Color is 3500K neutral white with 82 CRI, and the beam spread is 100 degrees, so it washes a wide area rather than throwing a spot.
7) Will the S21401 work on both 120V and 277V fixtures in my building?
Voltage range is 120V to 277V, so the same lamp covers residential 120V circuits and 277V commercial lighting branches. Current draw runs 0.133A down to 0.058A across that range. One SKU standardizes PL downlights across mixed-voltage buildings.
8) Will 3500K match the other lamps in my corridor, and can I switch the color temperature on this one?
Color temperature is fixed at 3500K, not selectable, so it will match other 3500K lamps but will read warmer than 4000K and cooler than 3000K in an adjacent fixture. Lens is frosted white housing, so the output is diffused rather than a visible dot pattern. Relamp a whole space in one temperature to avoid a mismatch down a corridor.
9) Can I put this LED PL lamp on a dimmer or a 3-way switch?
No. The S21401 is not a three-way lamp, and as a ballast-dependent Type A lamp its dimming behavior is governed by the fixture's ballast rather than the lamp. Treat it as an on/off replacement.
10) How long will these last before maintenance has to relamp again?
Average rated life is 50,000 hours. On a 12-hour-a-day corridor or garage schedule that is roughly 11 years of service, which is why PL retrofits like this get specified where the fixture is on a lift or above a stairwell. Each lamp weighs 0.42 lb.
11) Is the Satco S21401 legal to sell and install in California?
Yes. Satco lists the S21401 as lawful for sale in California, so it clears the state's lamp regulations for this product type.
How fast can I get the Satco Lighting S21401 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 S21401 come with a warranty?
Absolutely. The Satco Lighting S21401 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 S21401?
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
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