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FREE DELIVERY FOR ORDERS OVER €150 IN FINLAND / ORDERS BEFORE 3 PM WE TRY TO SHIP THE SAME DAY
FREE DELIVERY FOR ORDERS OVER €150 IN FINLAND / ORDERS BEFORE 3 PM WE TRY TO SHIP ON THE DAY
Thorgeon HPL-N 80W E27 mercury lamp 3600lm 4000K – 155 mm, requires ballast
Thorgeon HPL-N 80W E27 mercury lamp 3600lm 4000K – 155 mm, requires ballast

Thorgeon HPL-N 80W E27 mercury lamp 3600lm 4000K – 155 mm, requires ballast

SKU 4751029890764
€10.05 - €10.05
€10.05
€10.05 - €10.05
€10.05

includes VAT 25.5% Shipping costs are calculated at checkout.

Availability:
in stock, ready to be shipped

The Thorgeon HPL-N 80W is a traditional mercury lamp with an E27 base, producing 3,600 lumens of natural white 4000K light. It is suitable for general indoor lighting, warehouse lighting, pole luminaires, and outdoor industrial lighting. It operates in traditional mercury lamp systems together with a ballast and ignitor.

E27 base. Requires a ballast and ignitor — does not operate directly on 230V mains voltage. Contains mercury.

⚠ Order product

This product is an order product — delivery time is approximately 2 weeks from order. Please take this into account if you need the lamp quickly.

ℹ Aging technology — consider an LED alternative

Mercury lamps are older lighting technology gradually being replaced by LED equivalents. If your system allows for an LED conversion, consider E27 LED lamps — energy savings are typically 60–80% and service life is up to 5 times longer. This product is still available for the maintenance of existing systems.

Technical specifications

  • Lamp type: Mercury lamp (HPL-N, traditional)
  • Brand: Thorgeon
  • Series: HPL-N (High-Pressure Lamp - Normal)
  • Lamp shape: Ellipsoid (E-shape)
  • Base: E27 (standard Edison base)
  • Power: 80 W
  • Luminous flux: 3,600 lm
  • Color temperature: 4000 K (natural white)
  • Color Rendering Index (CRI): 40–59 (typical for mercury lamps)
  • Luminous efficacy: 44.5 lm/W
  • Internal lamp voltage: 105–120 V (requires ballast)
  • Compatibility: ballast + ignitor (traditional mercury lamp system)
  • Contains mercury: Yes (recycling according to WEEE directive)
  • Diameter: 71 mm
  • Length: 155 mm
  • Product code: 4751029890764
Compatibility and installation

Requires a ballast and ignitor — DOES NOT operate directly on 230V mains voltage

This is a traditional HPL-N mercury lamp that requires a ballast and ignitor to operate. The internal lamp voltage is 105–120 V, not the household 230 V. The ballast regulates the voltage and the ignitor starts the lamp.

HPL-N vs ML mixed-light lamp — an important distinction

If your system previously had an ML mixed-light lamp (e.g., Philips HPL 4 PRO), this HPL-N is not a direct replacement. Differences:

  • HPL-N (this product): traditional mercury lamp, requires a separate ballast and ignitor
  • ML mixed-light lamp: contains its own tungsten filament, which acts as an internal ballast — connects directly to 230V mains voltage

Check inside the luminaire to see if it has a separate ballast and ignitor. If it does, the HPL-N is suitable. If the luminaire was previously connected directly to 230V (without a ballast), you will need an ML mixed-light lamp (a different product) or the addition of a ballast and ignitor.

Typical applications

  • General indoor lighting: warehouses, industrial halls, workshops
  • Pole lighting: road lighting, courtyards, parking areas
  • Outdoor lighting for industrial areas: loading and storage areas
  • Maintenance of old systems: when existing lamps burn out

Service life and ignition time

Mercury lamps typically have a service life of 15,000–24,000 hours and an ignition time to full power of 3–7 minutes from ignition. The lamp warms up before reaching full light output, so it is not suitable for spaces requiring immediate strong light (e.g., safety lighting or high-frequency lighting).

Contains mercury — recycling is important

This lamp contains mercury, which is harmful to the environment. At the end of its life, the lamp must be recycled in accordance with the WEEE directive (Waste from Electrical and Electronic Equipment):

  • Do not dispose of the lamp in general waste
  • Take the end-of-life lamp to the nearest WEEE collection point (recycling centers, electrical stores)
  • Do not break the lamp during transport — mercury vapor is harmful to health

Note on color rendering — CRI 40–59

The Color Rendering Index (CRI) of this lamp is 40–59, which is low compared to, for example, LED lamps (CRI 80–95) and halogen (CRI 100). In practice, colors do not appear natural under mercury lamp light — greens are emphasized, reds fade. This is typical for mercury lamps and why they are mainly used in outdoor lighting and industrial spaces, not in spaces where color rendering is important.

Installation checklist

  1. Check that the luminaire has an E27 base
  2. Check that the luminaire has a functioning ballast and ignitor (no direct 230V connection)
  3. Check that the ballast is designed for an 80W mercury lamp (and not a different wattage)
  4. Check that the luminaire space is sufficient for a 71 mm diameter and 155 mm length
  5. Use protective gloves when installing — do not touch the lamp glass with your fingers
  6. Install with power off — screw the lamp into the E27 holder
  7. Turn on the power — wait 3–7 minutes for full power to be reached
  8. At the end of its life, recycle according to the WEEE directive

Also, explore our selection of other mercury lamps and the more energy-efficient E27 LED alternative.

Power: 80W
Color temperature: 4000K
Opinion: E27

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.

Request an offer

Usein kysytyt kysymykset

What is the difference between an HPL-N mercury lamp and an ML mixed lamp?

This is an important distinction when changing a mercury lamp:

  • HPL-N (High-Pressure Lamp - Normal): a traditional mercury lamp that requires a separate ballast and ignitor to operate. The internal voltage of the lamp is 105–120 V, not directly 230 V.
  • ML (Mercury Blend / blended lamp): contains its own tungsten filament, which acts as an internal ballast. It is connected directly to a 230V mains voltage without an external ballast.

Check the luminaire for a separate ballast before replacing the lamp. These are not interchangeable — if the system previously had an ML lamp, this HPL-N will not work directly without adding a ballast.

Can I directly replace an old 80W mercury lamp with this?

Yes, if the old lamp was an HPL-N 80W mercury lamp with an E27 base and the luminaire has a functioning ballast and ignitor. Please check that:

  • The old lamp type was HPL-N (not an ML mixed lamp)
  • The ballast is designed for an 80W mercury lamp (not a different wattage)
  • The ignitor is functional
  • The E27 base and lamp holder are compatible
  • There is enough space in the luminaire for a diameter of 71 mm and a length of 155 mm

If all these points are confirmed, the replacement can be done by simply changing the lamp.

Is it worth replacing a mercury lamp with an LED alternative?

In the long run, yes — the LED option is almost always worthwhile:

Energy Saving: An 80W mercury lamp can be replaced by a 10–15W LED lamp that produces the same light output. Energy savings of approximately 80%.

Lifespan: An E27 LED lamp lasts 15,000–25,000 hours, a mercury lamp 15,000–24,000 hours — the lifespan is in the same range, but LED maintains its light output better throughout its lifespan.

Color Rendering: LED produces CRI 80–95 color rendering, a mercury lamp only 40–59 — a clear difference.

However, an LED replacement requires modification of the luminaire — bypassing or removing the ballast and implementing an LED driver-based solution. Explore our selection of E27 LED bulbs and consider modernizing your system.

How do I recycle a spent mercury lamp?

Mercury lamps must not be disposed of with mixed waste — they contain mercury, which is harmful to the environment. Recycling is carried out in accordance with the WEEE Directive (Waste from Electrical and Electronic Equipment):

  • Take used lamps to the nearest WEEE collection point (collection of electrical and electronic waste). These can be found at municipal recycling centres, electrical supply stores, and hardware stores.
  • Especially for professional use — property maintenance and electrical contracting companies often have their own mercury lamp recycling agreement.
  • Do not break the lamp during transport — mercury vapour is harmful to health. Use the original packaging or a sturdy plastic bag.