ISKRA halogen bulbs come from the Iskra lighting group – a long-established lamp manufacturer with roots in the Lviv Electrolamp Plant, one of the biggest lighting producers in Ukraine and the CIS region.
On top of that, Iskra also operates an international trading office that works with a full range of light sources, including GLS, CFL, auto lamps, halogen, HID and LED.

So when you talk about ISKRA Halogen Bulbs, you’re not dealing with a random white-label product, but with a brand that’s been making conventional lamps for decades and still supports them for maintenance, industry and cost-sensitive projects.

Construction and Light Quality of ISKRA Halogen Bulbs

Technically, ISKRA halogen bulbs follow the classic tungsten-halogen design:

Tungsten filament
Runs at very high temperature and produces intense, warm white light with a Color Rendering Index close to 100 – colours look natural and detailed.
Halogen gas fill
A small dose of halogen (e.g. bromine or iodine) plus inert gas enables the halogen cycle:
- evaporated tungsten doesn’t just stick to the glass;
- it’s chemically bound and brought back to the filament;
- the bulb stays clearer, and light output drops more slowly over life.
Heat-resistant glass or quartz capsule
The small capsule can handle pressure and temperature much higher than a normal incandescent envelope – this is what allows compact shapes like G4, GY6.35 or G9 with strong output.
Standard lamp bases
In real assortments, you will see ISKRA halogen bulbs across most popular bases: G4, G9, GY6.35, GU10, GU5.3, E14, E27 and R7s in different wattages, so they drop easily into standard halogen luminaires.

As with all halogen, the light is:

warm (typically around 2700–3000 K),
fully dimmable on conventional dimmers,
and very “clean” in terms of colour rendering and flicker.

Assortment Overview: Main Types of ISKRA Halogen Bulbs

The ISKRA Halogen Bulbs range is not one single lamp but a family that covers both general and specialist use. Based on typical product listings, you’ll most often run into these groups:

ISKRA Halogen Capsules (G4 / GY6.35 / G9)

These are the tiny lamps hiding in furniture lighting, displays and compact fixtures. Examples include:

JC GY6.35 50 W 12 V capsule
- Power: 50 W
- Voltage: 12 V
- Base: GY6.35
- Luminous flux: about 1000 lm
- Colour temperature: 2800 K (warm white)
- Dimensions: approx. 10 mm diameter, 40 mm length

This type is used in:

display cabinets and glass shelves,
under-cabinet kitchen lights,
small spots in furniture and shopfitting,
some technical and machine lights.

G4 and G9 versions fill a similar role but with different bases (G4 often on 12 V, G9 typically on 230–240 V).

ISKRA Halogen Reflector Lamps (GU10 / GU5.3)

Retailers and category pages show ISKRA as a brand in eco-halogen ranges that include GU10 and GU5.3 reflector lamps.
These are the classic spotlights used in:

recessed ceiling downlights,
adjustable spotlights on rails or bars,
accent lighting for products, artwork or architectural details.

Beam angles usually range from narrow spots to medium floods, depending on the specific reflector design.

ISKRA Halogen Linear R7s Bulbs

R7s lamps are long, double-ended tubes used in floodlights and wall-washers. ISKRA appears in eco-halogen categories that also list multiple R7s lengths (78 mm, 118 mm and longer), which implies matching ISKRA types exist within that family.

Typical applications:

outdoor and yard floodlights,
façade and signage illumination,
tall indoor uplighters and wall washers.

ISKRA Halogen Retrofit Bulbs (E14 / E27)

Alongside capsules and specials, ISKRA’s conventional lamp range includes standard screw-base light bulbs (E14, E27
Where halogen versions are used, they’re mostly:

candle or classic bulb shapes for chandeliers, wall lights and decorative fixtures,
“eco” halogen variants that give incandescent-style light but with slightly better efficiency.

Technical Parameters of ISKRA Halogen Bulbs

While each model has its own datasheet, ISKRA Halogen Bulbs typically follow these ranges (using the GY6.35 capsule and similar lamps as concrete examples):

Power
- Capsules: usually 20–50 W
- GU10 / GU5.3 spots: roughly 20–50 W
- R7s linear: 80 W to 400 W or higher, depending on length
Voltage
- Low-voltage capsules: 12 V
- Most retrofit and R7s variants: 220–240 V mains
Luminous flux
- A 50 W 12 V GY6.35 capsule: about 1000 lm
- Lower wattages scale roughly proportionally (e.g. 35 W ~ 600–700 lm, depending on design)
Colour temperature
- Around 2700–3000 K, slightly variable by series (standard warm white, sometimes a tiny bit “cleaner” in low-voltage capsules).
Lifetime
- Typically around 2,000 hours for general-purpose halogen lamps.
- In real use this depends heavily on switching cycles, vibration, transformer quality (for 12 V) and thermal conditions.
Dimming
- All standard ISKRA halogen bulbs are naturally dimmable with compatible phase-cut dimmers, and they become warmer in colour as you dim them.

Common Applications for ISKRA Halogen Bulbs

Because the range covers both miniature and powerful types, ISKRA Halogen Bulbs appear in a lot of different places:

Furniture and display lighting
- G4 / GY6.35 / G9 capsules in cabinets, shop displays, niche spots and mirror lighting.
General decorative lighting
- E14/E27 halogen bulbs and G9 capsules in chandeliers, wall sconces, ceiling fixtures and hotel room lights.
Accent and retail lighting
- GU10 / GU5.3 halogen spots for highlighting products, artwork and architectural details where colour accuracy is critical.
Outdoor and industrial zones
- R7s floodlight lamps for yards, driveways, small sports courts and façades.
Technical and OEM equipment
- Low-voltage capsules in machines, projectors or custom luminaires that were originally designed around halogen optics.

How to Select ISKRA Halogen Bulbs for Your Installation

Choosing the right ISKRA Halogen Bulbs is mostly about matching physics and application, not just grabbing a similar wattage. Use this checklist on site:

Identify the base and voltage
- Check the fitting: G4, G9, GY6.35, GU10, GU5.3, E14, E27, R7s, etc.
- Confirm whether the system is low-voltage (e.g. 12 V capsule) or 230 V mains.
Respect luminaire wattage limits
- Every fixture has a maximum lamp wattage printed on it.
- Never exceed it – halogen runs hot and can overload small fittings quickly.
Choose light level and beam
- For capsules and screw-base bulbs, light level is mainly about wattage and number of lamps.
- For GU10 / GU5.3 and R7s floods, also consider the beam angle and distance to the target surface.
Match colour and atmosphere
- Most ISKRA halogen bulbs are warm white; for continuity, use the same colour temperature in one zone.
- In hospitality or residential projects, 2700–2800 K is usually ideal; for retail, slightly “crisper” halogen still looks warm but gives more contrast.
Think about operating hours
- High-use areas (shops, corridors, 10–12 h/day) will eat through halogen faster – plan stock and maintenance cycles.
- In rarely used spaces, halogen can be a simple, cost-effective solution that doesn’t justify a full LED redesign yet.

Safety, Standards and Handling of ISKRA Halogen Bulbs

Even good lamps die early if they’re abused. With ISKRA Halogen Bulbs, pay attention to:

Handling
- Avoid touching quartz capsules (G4, GY6.35, some G9) with bare fingers. Oils on the glass can create hot spots and shorten life.
- If you do touch the glass, wipe it with a clean dry cloth before switching on.
Heat management
- Halogen lamps run very hot compared to LED.
- Make sure fixtures have ventilation and that shades or nearby materials are heat-resistant.
Electrical and mechanical fit
- Always insert the correct base type; never “force” a capsule or R7s tube into a holder.
- Check low-voltage systems: wrong transformer output can cause over- or under-voltage and drastically reduce lifetime.
Regulatory context
- In many countries, general-purpose halogen lamps are restricted by ecodesign rules, but special-purpose and certain eco-halogen types remain available and are sold as conventional lamps through professional channels.
- For new projects, it’s smart to check local regulations and, if needed, combine ISKRA halogen with LED solutions.

Wholesale Supply and Project Use of ISKRA Halogen Bulbs

On the B2B side, ISKRA Halogen Bulbs are typically sold within a larger “ISKRA Conventional Lamps” category by specialist wholesalers, alongside ISKRA incandescent and other classic sources.

For installers, facility managers and lighting designers, a sensible strategy is:

Standardise on a short list
- Pick a small set of ISKRA halogen capsules, spots and R7s lamps that match the luminaires you actually support (for example: GY6.35 50 W 12 V, G9 capsules in 30–50 W class, one or two R7s wattages).
Use EAN / MPN codes
- Always order by exact article code so you get consistent colour, brightness and geometry in every batch.
Combine with LED
- Keep ISKRA halogen where you really need its strengths – compact size, perfect colour, ideal dimming.
- Switch the rest of the building to LED to reduce energy and maintenance costs while still having reliable halogen options available for special tasks.

Handled this way, ISKRA Halogen Bulbs become a deliberate, well-managed tool in your lighting toolkit rather than a leftover legacy technology.