LED G4 Bulbs (12V & 220V)

Compact G4 bi-pin LED capsules — 12V low-voltage and 220V mains versions, halogen replacements in warm white to daylight, dimmable and non-dimmable, built to specification for lighting makers and OEM buyers.

G4 bulbs are compact bi-pin LED capsules used wherever a small light source is needed. Most are 12V low-voltage, run from a transformer, with 220V versions also available for direct mains fittings. Luxray produces them from 2W upward, in warm white through daylight, dimmable and non-dimmable — direct replacements for G4 halogen capsules, with far lower energy use and a much longer life.

G4 LED capsules are widely built into cabinet and display lighting, under-shelf and mirror lights, desk lamps, chandeliers and decorative fixtures. The range covers retail and distribution as well as project and OEM requirements, in a full span of wattages and colour temperatures to match the fixture and the application.

Product development is handled in-house, backed by our own LED packaging facility — so performance can be pushed beyond off-the-shelf parts. Colour temperature, CRI, lumen output and wattage are tuned to each requirement, with consistent quality from sample to production. Custom samples are produced quickly, and small trial orders are accepted for validation before volume.

Specification Range

Base G4 bi-pin (G8 and GY6.35 also available)
Wattage 1W – 4W
Luminous flux 100 – 450 lm
Efficacy Up to 130 lm/W
Colour temperature 2700K – 6500K (custom CCT on request)
CRI Ra 80+ standard · Ra 90 available
Voltage 12V AC/DC · 220–240V AC · 100–265V AC
Body style Silicone · PC frosted · Ceramic · Mini globe
LED type SMD 2835 · 3014 · 4014 · COB
Size From 10.3 × 8.9 × 31.5mm (COB) to Ø16 × 57mm
Beam angle Approx. 320° omnidirectional
Dimming Non-dimmable and dimmable versions (12V and mains)
Typical use Chandeliers · pendants · wall lights · cabinet and display lighting · cooker hoods
Certification CE · RoHS · ErP compliant · UKCA on selected models
Warranty 2 years standard · up to 3 years on selected models
MOQ Low MOQ for custom & OEM — from 500 pcs
Lead time 25–35 days, depending on specification

*All specifications can be combined and tailored to your project. For options not listed here, contact us.

Popular G4 Models

A selection of our most-requested G4 LED capsules — 12V and 220V, in a range of wattages and colour temperatures. Every model can be built to your exact specification.

LED G4 bulb 12V dimmable, PC body

G4 LED · 12V · 1.5W · 2700K

LED G4 bulb 12V 2W, bi-pin halogen replacement

G4 LED · 12V · 2W · 110lm

LED G4 12V capsule bulb, 2W warm white

G4 LED · 12V · 2W · 180lm

LED G4 COB Silicone bulb 12V, 1W dimmable

G4 COB · 12V · 1.5W · 140lm

Manufactured, Not Just Supplied

30+ years’ expertise

Our team brings over 30 years of industry experience, focused on premium custom light sources since 2014.

Full certification

CE, RoHS, ETL, and ERP test reports issued by internationally recognized laboratories — SGS, TÜV, and Intertek.

In-house sampling

We develop and produce samples in-house, with one-to-three approval rounds for custom work.

Batch consistency

Color temperature and brightness held consistent across production runs.

How We Build It

A decorative bulb is only as good as the details behind it. We control both how it performs and how it looks — from the engineering inside to the finish you see.

01 — GLASS

Glass, Selected and Cleaned by Hand

On a clear filament bulb, the glass has nowhere to hide — every streak, bubble, or speck shows once the light is on. That’s why every envelope is inspected piece by piece on arrival, then hand-cleaned before assembly. Envelopes that don’t meet our clarity standard are rejected, not reworked.

Incoming inspection on every envelope, not sample checks
Hand-cleaned before assembly for a flawless finish
Sub-standard glass rejected before it enters production

Inspection covers clarity, wall thickness, and neck dimensions.

02 — FILAMENT

Filaments Designed to Be Seen

Filaments Designed to Be Seen
On a decorative bulb, the filament is the design. We shape and position each filament for visual balance and a refined glow — and we fix the geometry per model, so filament angle and spacing stay identical from bulb to bulb. When a project installs fifty bulbs in one chandelier, they all look like one family.

Filament layout fixed per model — no visible variation across a batch
Soft, even glow without hot spots or glare
Custom filament shapes available for OEM projects

03 — GAS-FILL

Patented Gas-Fill Technology

Most decorative bulbs dim noticeably within the first year or two. Ours are built not to — the gas mixture sealed inside each bulb is engineered to slow lumen depreciation and protect the LED filament across its full working life.

Lumen maintenance above [90]% at [6,000] hours
Consistent brightness and color, batch after batch
Every production run verified by in-house aging tests

04 — COMPONENTS

Matched Components, Not Standard Parts

A dim-to-warm bulb and a high-CRI clear bulb shouldn’t run on the same driver — so they don’t. Filament and driver are specified per model, and the production process is tuned to each design, so every variant performs exactly as its spec sheet promises.

Driver matched to each model — flicker-free, smooth dimming where specified
Full traceability: every batch linked to its component lot
Spec sheets reflect tested values, not catalog claims

Frequently Asked Questions

Our MOQ is typically 500 to 1,000 pcs, depending on the packaging method and the specification you choose. Contact us with your requirements and we will confirm the exact MOQ for your project.

Yes, we support sample orders for testing and comparison. Samples of standard specifications are free of charge for orders up to 5 pcs — buyers only need to cover the shipping cost.

Custom specifications (e.g. custom CCT) may incur a sample fee, to be confirmed based on your requirements. Sample lead time is usually 3 to 7 days, depending on the specific parameters requested.

Yes, for first-time buyers we can accommodate a smaller trial order to help you evaluate quality before committing to a full production run. Trial order quantity and terms will be confirmed based on your specification.

Yes. We support fully customized packaging for your brand, and we can also provide neutral, safe-shipping packaging. If you need retail packaging, we can help design custom color boxes to match your brand.
We require a 50% deposit to start production, with the balance due before shipment.

Production typically takes 30 to 45 days, depending on quantity and the level of customization.

We ship from Xiamen, China and support FOB Xiamen and EXW terms. We can also arrange delivery to a nearby city such as Guangdong to help consolidate your shipment or simplify your logistics arrangement.
We are a manufacturer. Our team has over 30 years of experience in the lighting and manufacturing industry.
We ship from Xiamen, China.
We offer a 2 to 3 year warranty, depending on your requirements and specification.

Yes, we welcome third-party inspection (e.g. SGS, or an inspector of your choice) before shipment. Please arrange the inspection with us in advance so we can coordinate scheduling.

Absolutely. We welcome factory visits by appointment, and we’re also happy to arrange a live video tour of our production line if an in-person visit isn’t possible.

12V G4 bulbs run from a transformer and are the most common type, used in cabinet lights, desk lamps and low-voltage fixtures. 220V G4 bulbs connect directly to mains without a transformer. Both use the same G4 bi-pin base — choose by the voltage your fixture supplies.

We provide ongoing support after delivery, including technical consultation, troubleshooting assistance, and replacement for confirmed quality issues within the warranty period. Our team responds to after-sales inquiries within 12 hours.

Need a custom G4 spec?

What you see here is only part of what we make. We develop custom G4 capsules for OEM and project requirements. Tell us your specification — voltage, wattage, lumen output, colour temperature and base — and we’ll respond within 12 hours.