Sylvania RefLED Superia Retro MR16 GU5.3 4.3W 36° 12V – Glass, replaces 35W
includes VAT 25.5% Shipping costs are calculated at checkout.
The Sylvania RefLED Superia Retro MR16 is a professional-grade premium LED MR16 designed by Sylvania to replace a traditional 35W GU5.3 halogen lamp. This is the lowest wattage category in the Superia MR16 series—perfectly suited for ambient lighting, smaller spotlights, and applications requiring softer light quality. Available in four color temperature variants, including the ultra-warm 2700K, which provides a light bulb-like ambiance. The all-glass construction, 25,000-hour lifespan, and five-year warranty make this a reliable choice for professional use.
GU5.3 base. Operates on 12V AC/DC. Requires a transformer. Not dimmable.
⚠ Made-to-order item
This product is a made-to-order item—delivery time is approximately 2 weeks from the order date. Availability can be checked in the shopping cart.
✓ Four color temperatures — including 2700K light bulb ambiance
This lamp is available in an exceptionally wide range of color temperature variants: 2700K (extra warm, light bulb ambiance), 3000K (warm white), 4000K (cool white), and 6500K (daylight). The 2700K option is a rarity in LED spotlights and is particularly well-suited for vintage and ambient lighting fixtures.
✓ Premium grade — 5-year warranty, 25,000 h lifespan
Sylvania's Superia series is designed for durability in professional use: 67% longer lifespan (25,000 h vs. 15,000 h for the Retro model), 2× more switching cycles (over 100,000), and a 5-year warranty (vs. 3 years).
Technical specifications
- Replaces a traditional 35W GU5.3-base halogen lamp
- Lamp type: LED MR16 spotlight (Superia, professional use)
- Brand: Sylvania
- Series: RefLED Superia Retro MR16
- Base: GU5.3 (bi-pin, 5.3 mm pin spacing)
- Voltage: 12 V AC/DC (requires transformer)
- Power: 4.3 W
- Luminous flux: 345 lm (2700K and 3000K) / 380 lm (4000K and 6500K)
- Color temperature: 2700 K, 3000 K, 4000 K, or 6500 K (selectable)
- Beam angle: 36° (wide spotlight)
- Color rendering index (CRI): 80
- Lifespan: 25,000 hours
- Switching cycles: over 100,000
- Lamp construction: all-glass body (no plastic)
- Compatibility: 12V transformers (magnetic or electronic)
- Dimmable: No
- Warranty: 5 years
- Diameter: 44 mm
- Length: 50 mm
- Product codes: 2700K = 0031801 / 3000K = 0031802 / 4000K = 0031804 / 6500K = 0031806
⚠️ 6500K MINIMUM ORDER QUANTITY IS 6 PCS.
PURCHASES OF FEWER THAN 6 PCS ARE POSSIBLE; PLEASE CONTACT CUSTOMER SERVICE.
Compatibility and installation
4 color temperature variants — for all applications
This is the only model in the Superia MR16 series that offers four different color temperature options, including the rare 2700K variant:
- 2700K (warm, light bulb-like): household ambient lighting, restaurants, hotels, bars, vintage fixtures
- 3000K (warm white): the most common for ambient lighting — households, restaurants, cafes
- 4000K (cool white): offices, workspaces, retail, display cases
- 6500K (daylight): museums, gallery staff areas, task lighting, photography studios
The 2700K variant is especially valuable because it is rare in LED spotlights — most manufacturers offer only 3000K and cooler shades.
Superia grade — for professional use
Sylvania's Superia series is a premium classification that stands out from the standard RefLED Retro range with the following improvements:
- Lifespan 25,000 h — 67% longer than the standard Retro (15,000 h)
- Switching cycles over 100,000 — double the standard Retro (50,000)
- 5-year warranty — longer than standard 2–3 year LED warranties
This makes Superia the ideal choice for spaces where the lamp is in constant or frequent use — hotels, restaurants, shops, offices, and exhibition spaces.
Superia MR16 series power levels — when to choose which?
Sylvania offers several wattage levels in the Superia MR16 series. The choice depends on the power of the old halogen lamp:
- This 4.3W (345/380 lm): replaces a 35W halogen — minor ambient lighting, precise spotlighting
- 4.6W (460/480 lm): replaces a 40W halogen — general lighting, ambient lighting
- 6W (621 lm): replaces a 50W halogen — powerful spotlighting, retail displays
Measure the wattage of your old halogen lamp — choose the correct model based on that.
MR16 size with 44 mm diameter
This lamp is a compact MR16 version — slightly smaller (44 mm) than a standard MR16 (51 mm), but retains MR16 compatibility with its GU5.3 base. Fits both standard MR16 holders and slightly smaller recessed openings.
Requires a 12V transformer
This is a 12V low-voltage lamp that needs a 12V transformer to operate. Works with both magnetic and electronic transformers, but compatibility with electronic transformers depends on the specific model. The most common compatible brands are Helvar, Tridonic, Osram, Ledvance, and Vossloh-Schwabe.
Compatible transformers can be found in the Electrical Supplies → Transformers category.
Check the transformer power
The transformer power must correspond to the lamp (or the total power of multiple lamps). For one 4.3W lamp, the transformer should be at least approx. 5W (reserve a small buffer). For multiple lamps:
- 5 lamps = 21.5W → transformer at least 25W
- 10 lamps = 43W → transformer at least 50W
- 20 lamps = 86W → transformer at least 100W
Glass body — premium quality that looks authentic
Unlike standard plastic LED lamps, this Sylvania RefLED Superia Retro features an all-glass body — the same material as traditional halogen lamps:
- More even light distribution than plastic
- Does not yellow over time
- Halogen-like appearance — fits seamlessly into traditional fixtures
- Withstands higher temperatures than plastic
Replaces 35W GU5.3 halogen — 88% energy savings
This 4.3W LED produces the same luminous flux (345–380 lm) as a traditional 35W GU5.3 halogen. The energy savings are approximately 88%, and the lifespan is:
- 35W GU5.3 halogen: 2,000–4,000 h
- This Sylvania Superia: 25,000 h — 6–12 times longer
This lamp is not dimmable
Do not install the lamp in a fixture equipped with a dimmer. The lamp may flicker, remain on at full power, or be damaged.
36° beam angle — wide spotlight
The 36° beam angle of this lamp is in the flood category — a wide spotlight suitable for:
- General lighting in small spaces
- Ambient lighting in hotels, restaurants, and bars
- Product displays in shops and exhibition spaces
- Display cases, jewelry stores, and smaller spotlights
- Modernizing older GU5.3 spotlights
Installation checklist
- Check that the fixture has a GU5.3 base (not GU4 or GU10)
- Check that a 12V transformer is in use (magnetic or electronic)
- Check that the transformer power is sufficient for the total power of the lamps
- Check that the fixture dimensions (44 mm diameter, 50 mm length) fit
- Check that the fixture does not have a dimmer
- Turn off the power before installation — do not touch the lamp glass with your fingers
- Install the lamp and turn on the power
Also check out the other GU5.3 LED spotlights in our selection.
Delivery
We ship your order from our warehouse in Jyväskylä. Orders placed before 2 PM are usually shipped on the same day. Free delivery within Finland for orders over €150.
Warranty
Products purchased through Lumenled come with a manufacturer's warranty, supported by Lumenled in cooperation with the importer. You can find detailed warranty terms here: Warranty terms of our partners.