SATCO Lighting S21743 5.5W MR16 LED, GU10 Base, 3000K, 120V, 40 degree Beam Angle, 2-Card
5.5 Watt MR16 LED - GU10 base - 3000K - 120 Volt - 40 deg. Beam Angle - 2-Card
Manufacturer Resources
Product Specs
- Product Group:
- Indoor Lighting
- Product Subgroup:
- Light Bulbs
- Lumens:
- 500L
- Product Material:
- Plastic
- CRI:
- 80+
- Dimmable:
- Yes-Dimmable
- Product Weight:
- 0.05 lb
Satco Lighting S21743 – Frequently Asked Questions
1) Will the Satco S21743 MR16 LED work in a standard line-voltage track or recessed fixture without a transformer?
Yes. The S21743 is a 120 volt lamp with a GU10 twist-lock base, so it wires straight to line voltage. No low-voltage transformer is needed or wanted here. If your fixture has a GU5.3 or MR16 bi-pin socket running off a 12 volt magnetic or electronic transformer, this lamp will not fit or work in it.
2) Can a 5.5 watt LED MR16 replace the 50 watt halogen MR16 that is in there now?
That is the intent of the S21743. It draws 5.5 watts against the 35 to 50 watts a halogen MR16 pulls, and it keeps the same GU10 base and MR16 body so it drops into the existing socket. The gain for an MRO or facilities buyer is twofold: the energy draw and the fact that LED does not put the heat of a halogen into the can.
3) How do I tell a GU10 lamp from the other MR16 base types before I order?
Pull one lamp and look at the pins. GU10 has two stubby pins with flared, mushroom-shaped tips and it twists a quarter turn to lock in. GU5.3 and MR16 bi-pin have two straight, thin pins that push straight in. The S21743 is the GU10 twist-lock version at 120 volts. Getting this wrong is the single most common ordering mistake on MR16 relamps.
4) Is 3000K going to look warm or white next to the halogen MR16s already in my ceiling?
The S21743 runs 3000K, a soft warm white. Standard halogen MR16 sits closer to 2700K to 3000K, so it reads very close to halogen with a touch less yellow. For a property manager relamping a corridor or lobby a few fixtures at a time, 3000K blends with existing halogen far better than a 4000K or 5000K lamp would.
5) What does a 40 degree beam angle on an MR16 actually cover, and should I pick a narrower spot instead?
40 degrees is a flood beam. It spreads light over a wide pool, which suits general downlighting in an office, corridor, retail sales floor, or over a seating area, and it tolerates wider fixture spacing without scalloping. If you are accenting artwork, a display case, or a single architectural feature and want a tight, high-contrast pool, you want a narrow spot in the 10 to 25 degree range instead. The S21743 is the flood.
6) How many bulbs come in a Satco S21743 pack?
The S21743 ships as a 2-card, meaning two lamps per retail blister card. Worth knowing when you are counting fixtures for a relamp: a 24-can office ceiling needs 12 cards, not 24.
7) What is the Satco part number for the 5.5W GU10 MR16 in 3000K with a 40 degree flood?
S21743. That is the Satco manufacturer part number for the 5.5 watt MR16 LED, GU10 base, 3000K, 120 volt, 40 degree beam, supplied on a 2-card. Distributors ordering to a spec should quote S21743 directly, since Satco's MR16 line splits by color temperature and beam angle under otherwise similar descriptions.
How fast can I get the Satco Lighting S21743 delivered?
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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 S21743 come with a warranty?
Absolutely. The Satco Lighting S21743 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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