
Satco 100W Clear ET23-1/2 Mogul Screw High-Pressure Sodium High-Intensity Light Bulb (S1931)
The Satco 100W Clear ET23-1/2 Mogul Screw High-Pressure Sodium High-Intensity Light Bulb (S1931) by Satco is a High-Intensity Light Bulb product. Available for delivery and in-store pickup at Family Hardware in Cape Coral and Fort Myers, FL.
Cape Coral: 0 available · Fort Myers: 0 available
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$18.17
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Buy a full case (12) — $206.04
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Case price — includes $12.00 pack savings.
Order $75 or more — $90.85
Any order over $75 ships free — 5 of this item gets you there.
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Orders before 12:30 ET Ship Same Day. Otherwise next Business Day.
ET23-1/2 High-pressure sodium HID (high-intensity discharge) light bulb with mogul screw base. Replacement high-pressure sodium light bulb. Ideal for outdoor security light fixtures. Features high efficacy, long life, and universal operating position.
Satco item S1931 · UPC 045923019319
This is Satco S1931, a ET18 / ET23-1/2 lamp on a Mogul screw (E39) base. If you are replacing a bulb, the Satco number on the old sleeve or the fixture label is the surest way to match it — order by S1931 and you get the same lamp.
ET-shape high-pressure sodium lamps: what ET18 / ET23-1/2 means
Tubular high-pressure sodium lamps with a mogul screw base, recognisable by their amber output. Match the wattage and the ANSI ballast code stamped on the fixture; HPS lamps are not interchangeable with metal halide without changing the ballast.
Also searched for as
Base: Mogul screw (E39)
Mogul screw (E39) is the large screw base used on HID and high-wattage lamps. The base has to match the socket exactly — wattage and colour temperature are choices, but the base is a fit.
Where this lamp is used
- Street, roadway and parking lot fixtures
- Security and yard lighting
- Greenhouse supplemental lighting
- Case quantities for maintenance stock
Buying more than one
Most Satco lamps are stocked in multiples and many are sold by the case. Bulbs in a shared fixture age together, so relamping the whole fixture at once keeps colour and brightness matched and saves a second trip up the ladder. Use the quantity selector above to see the pack and case options and the price that goes with them.
Browse the full range on our Satco lighting brand page — or search the Satco number (S1931) to come straight back here.