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Low Voltage LED Filament Bulbs

OEM low voltage lighting solutions

Low Voltage LED Filament Bulbs

DC and AC/DC filament bulb solutions for battery, solar, RV, marine, hospitality and other low-voltage lighting systems. Select the electrical architecture first, then confirm shape, base, wattage, dimmer and transformer compatibility.

3.7V / 5V / 12V / 24VDC and AC/DCA60 / C35 / G45 / G80 / ST64Ra 80 / 90 / 95OEM customization

Choose the electrical solution before choosing the bulb shape

A low-voltage DC bulb and a low-voltage AC/DC bulb are not the same product with reversed polarity. Their driver architecture, acceptable power source, voltage tolerance, flicker behavior and dimming compatibility are different. HongYu Bulb offers three established configurations for project matching.

DC resistor solution

For constant-voltage DC supplies or batteries. Available at 3.7V, 5V, 12V and 24V. It has a simple circuit and no AC rectification, but power changes more noticeably when the supply voltage moves away from nominal.

IC-A buck AC/DC solution

For compatible 12V or 24V AC/DC supplies. The circuit combines an IC, bridge rectifier, capacitor, resistor and filament. It supports low-flicker operation and dimming with a limited, tested set of transformers and dimmers.

IC-B boost AC/DC solution

For compatible 12V or 24V AC/DC supplies where broader control matching is required. It also supports single-voltage designs with about +/-3V tolerance or a 12-24V wide-voltage project configuration.

Compatibility requirement: Low-voltage dimming depends on the complete circuit. Samples should be tested with the buyer's actual transformer, dimmer and wiring before mass-production approval.

Key product range

Voltage
3.7V / 5V / 12V / 24V
Input
DC or AC/DC
Wattage
3W - 6W
Output
100 - 600 lm
CRI
Ra 80 / 90 / 95
Bases
E12 to E27 / B15 / B22

Product gallery

3.7V / 5V DC

A60-3W-C-3.7V-DC low voltage LED filament bulb

A60-3W-C-3.7V-DC

3.7V DC | 3W | 280 lm

Clear

G45-3W-C-3.7V-DC low voltage LED filament bulb

G45-3W-C-3.7V-DC

3.7V DC | 3W | 280 lm

Clear

C35-3W-C-3.7V-DC low voltage LED filament bulb

C35-3W-C-3.7V-DC

3.7V DC | 3W | 280 lm

Clear

A60-3W-C-5V-DC low voltage LED filament bulb

A60-3W-C-5V-DC

5V DC | 3W | 280 lm

Clear

G45-3W-C-5V-DC low voltage LED filament bulb

G45-3W-C-5V-DC

5V DC | 3W | 280 lm

Clear

C35-3W-C-5V-DC low voltage LED filament bulb

C35-3W-C-5V-DC

5V DC | 3W | 280 lm

Clear

12V / 24V DC

A60-3.5W-C-12V-DC low voltage LED filament bulb

A60-3.5W-C-12V-DC

12V DC | 3.5W | 300 lm

Clear

A60-6W-C-12V-DC low voltage LED filament bulb

A60-6W-C-12V-DC

12V DC | 6W | 600 lm

Clear

G45-3W-C-12V-DC low voltage LED filament bulb

G45-3W-C-12V-DC

12V DC | 3.5W | 300 lm

Clear

C35-3W-C-12V-DC low voltage LED filament bulb

C35-3W-C-12V-DC

12V DC | 3.5W | 300 lm

Clear

A60-3.5W-C-24V-DC low voltage LED filament bulb

A60-3.5W-C-24V-DC

24V DC | 3.5W | 300 lm

Clear

A60-6W-C-24V-DC low voltage LED filament bulb

A60-6W-C-24V-DC

24V DC | 6W | 600 lm

Clear

G45-3W-C-24V-DC low voltage LED filament bulb

G45-3W-C-24V-DC

24V DC | 3.5W | 300 lm

Clear

C35-3W-C-24V-DC low voltage LED filament bulb

C35-3W-C-24V-DC

24V DC | 3.5W | 300 lm

Clear

12V / 24V AC/DC - IC-A

A60-3.5W-C-12V-AC/DC-A low voltage LED filament bulb

A60-3.5W-C-12V-AC/DC-A

12V AC/DC | 3.5W | 300 lm

Clear

A60-6W-C-12V-AC/DC-A low voltage LED filament bulb

A60-6W-C-12V-AC/DC-A

12V AC/DC | 6W | 600 lm

Clear

G45-3.5W-C-12V-AC/DC-A low voltage LED filament bulb

G45-3.5W-C-12V-AC/DC-A

12V AC/DC | 3.5W | 300 lm

Clear

C35-3.5W-C-12V-AC/DC-A low voltage LED filament bulb

C35-3.5W-C-12V-AC/DC-A

12V AC/DC | 3.5W | 300 lm

Clear

A60-3.5W-C-24V-AC/DC-A low voltage LED filament bulb

A60-3.5W-C-24V-AC/DC-A

24V AC/DC | 3.5W | 300 lm

Clear

A60-6W-C-24V-AC/DC-A low voltage LED filament bulb

A60-6W-C-24V-AC/DC-A

24V AC/DC | 6W | 600 lm

Clear

G45-3.5W-C-24V-AC/DC-A low voltage LED filament bulb

G45-3.5W-C-24V-AC/DC-A

24V AC/DC | 3.5W | 300 lm

Clear

C35-3.5W-C-24V-AC/DC-A low voltage LED filament bulb

C35-3.5W-C-24V-AC/DC-A

24V AC/DC | 3.5W | 300 lm

Clear

12V / 24V AC/DC - IC-B

A60-3.5W-C-12V-AC/DC-B low voltage LED filament bulb

A60-3.5W-C-12V-AC/DC-B

12V AC/DC | 3.5W | 300 lm

Clear

A60-6W-C-12V-AC/DC-B low voltage LED filament bulb

A60-6W-C-12V-AC/DC-B

12V AC/DC | 6W | 600 lm

Clear

G45-3.5W-C-12V-AC/DC-B low voltage LED filament bulb

G45-3.5W-C-12V-AC/DC-B

12V AC/DC | 3.5W | 300 lm

Clear

C35-3.5W-C-12V-AC/DC-B low voltage LED filament bulb

C35-3.5W-C-12V-AC/DC-B

12V AC/DC | 3.5W | 300 lm

Clear

A60-3.5W-C-24V-AC/DC-B low voltage LED filament bulb

A60-3.5W-C-24V-AC/DC-B

24V AC/DC | 3.5W | 300 lm

Clear

A60-6W-C-24V-AC/DC-B low voltage LED filament bulb

A60-6W-C-24V-AC/DC-B

24V AC/DC | 6W | 600 lm

Clear

G45-3.5W-C-24V-AC/DC-B low voltage LED filament bulb

G45-3.5W-C-24V-AC/DC-B

24V AC/DC | 3.5W | 300 lm

Clear

C35-3.5W-C-24V-AC/DC-B low voltage LED filament bulb

C35-3.5W-C-24V-AC/DC-B

24V AC/DC | 3.5W | 300 lm

Clear

12V AC/DC specialty finishes

A60-3.5W-W-12V-AC/DC low voltage LED filament bulb

A60-3.5W-W-12V-AC/DC

12V AC/DC | 3.5W | 250 lm

Porcelain

G80-6W-W-12V-AC/DC low voltage LED filament bulb

G80-6W-W-12V-AC/DC

12V AC/DC | 6W | 490 lm

Porcelain

ST64-4W-G-12V-AC/DC low voltage LED filament bulb

ST64-4W-G-12V-AC/DC

12V AC/DC | 4W | 200 lm

Gold

ST64-4W-S-12V-AC/DC low voltage LED filament bulb

ST64-4W-S-12V-AC/DC

12V AC/DC | 4W | 100 lm

Smoky

Full specifications

Item No.SizeVoltageLamp BaseWattsCCTRaLumenFinish
3.7V / 5V DC
A60-3W-C-3.7V-DC60 x 105 mm3.7V DCE26 / E27 / B223W2700K80 / 90 / 95280 lmClear
G45-3W-C-3.7V-DC45 x 78 mm3.7V DCE26 / E27 / E12 / E14 / B15 / E173W2700K80 / 90 / 95280 lmClear
C35-3W-C-3.7V-DC35 x 98 mm3.7V DCE12 / E14 / B15 / E173W2700K80 / 90 / 95280 lmClear
A60-3W-C-5V-DC60 x 105 mm5V DCE26 / E27 / B223W2700K80 / 90 / 95280 lmClear
G45-3W-C-5V-DC45 x 78 mm5V DCE26 / E27 / E12 / E14 / B15 / E173W2700K80 / 90 / 95280 lmClear
C35-3W-C-5V-DC35 x 98 mm5V DCE12 / E14 / B15 / E173W2700K80 / 90 / 95280 lmClear
12V / 24V DC
A60-3.5W-C-12V-DC60 x 105 mm12V DCE26 / E27 / B223.5W2700K80 / 90 / 95300 lmClear
A60-6W-C-12V-DC60 x 105 mm12V DCE26 / E27 / B226W2700K80 / 90 / 95600 lmClear
G45-3W-C-12V-DC45 x 78 mm12V DCE26 / E27 / E12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
C35-3W-C-12V-DC35 x 98 mm12V DCE12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
A60-3.5W-C-24V-DC60 x 105 mm24V DCE26 / E27 / B223.5W2700K80 / 90 / 95300 lmClear
A60-6W-C-24V-DC60 x 105 mm24V DCE26 / E27 / B226W2700K80 / 90 / 95600 lmClear
G45-3W-C-24V-DC45 x 78 mm24V DCE26 / E27 / E12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
C35-3W-C-24V-DC35 x 98 mm24V DCE12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
12V / 24V AC/DC - IC-A
A60-3.5W-C-12V-AC/DC-A60 x 105 mm12V AC/DCE26 / E27 / B223.5W2700K80 / 90 / 95300 lmClear
A60-6W-C-12V-AC/DC-A60 x 105 mm12V AC/DCE26 / E27 / B226W2700K80 / 90 / 95600 lmClear
G45-3.5W-C-12V-AC/DC-A45 x 78 mm12V AC/DCE26 / E27 / E12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
C35-3.5W-C-12V-AC/DC-A35 x 98 mm12V AC/DCE12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
A60-3.5W-C-24V-AC/DC-A60 x 105 mm24V AC/DCE26 / E27 / B223.5W2700K80 / 90 / 95300 lmClear
A60-6W-C-24V-AC/DC-A60 x 105 mm24V AC/DCE26 / E27 / B226W2700K80 / 90 / 95600 lmClear
G45-3.5W-C-24V-AC/DC-A45 x 78 mm24V AC/DCE26 / E27 / E12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
C35-3.5W-C-24V-AC/DC-A35 x 98 mm24V AC/DCE12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
12V / 24V AC/DC - IC-B
A60-3.5W-C-12V-AC/DC-B60 x 105 mm12V AC/DCE26 / E27 / B223.5W2700K80 / 90 / 95300 lmClear
A60-6W-C-12V-AC/DC-B60 x 105 mm12V AC/DCE26 / E27 / B226W2700K80 / 90 / 95600 lmClear
G45-3.5W-C-12V-AC/DC-B45 x 78 mm12V AC/DCE26 / E27 / E12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
C35-3.5W-C-12V-AC/DC-B35 x 98 mm12V AC/DCE12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
A60-3.5W-C-24V-AC/DC-B60 x 105 mm24V AC/DCE26 / E27 / B223.5W2700K80 / 90 / 95300 lmClear
A60-6W-C-24V-AC/DC-B60 x 105 mm24V AC/DCE26 / E27 / B226W2700K80 / 90 / 95600 lmClear
G45-3.5W-C-24V-AC/DC-B45 x 78 mm24V AC/DCE26 / E27 / E12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
C35-3.5W-C-24V-AC/DC-B35 x 98 mm24V AC/DCE12 / E14 / B15 / E173.5W2700K80 / 90 / 95300 lmClear
12V AC/DC specialty finishes
A60-3.5W-W-12V-AC/DC60 x 105 mm12V AC/DCE26 / E27 / B223.5W2700K80 / 90 / 95250 lmPorcelain
G80-6W-W-12V-AC/DC80 x 120 mm12V AC/DCE26 / E27 / B226W2700K80 / 90 / 95490 lmPorcelain
ST64-4W-G-12V-AC/DC64 x 140 mm12V AC/DCE26 / E27 / B224W2000K80 / 90 / 95200 lmGold
ST64-4W-S-12V-AC/DC64 x 140 mm12V AC/DCE26 / E27 / B224W2200K80 / 90 / 95100 lmSmoky
Photometric note: Listed lumen values follow the supplied product specification. Standard CCT options can include 2200K, 2700K, 3000K, 4000K and 6500K; the gold and smoky ST64 models use the CCT shown in the table. Final lumen, CRI and dimming data should be confirmed on the approved sample.

Typical applications

  • Battery-powered and portable decorative lighting
  • Solar and off-grid constant-voltage systems
  • RV, caravan and marine interior fixtures
  • Low-voltage hospitality and architectural installations
  • Visible-bulb decorative fixtures requiring warm filament appearance

OEM and engineering options

  • DC, IC-A or IC-B driver architecture
  • Filament lengths from 26 mm to 300 mm, subject to bulb structure
  • A60, C35, G45, G80 and ST64 shapes
  • E12, E14, B15, E17, E26, E27 and B22 bases
  • Clear, porcelain, gold and smoky finishes
  • CCT, CRI, logo and packaging customization

Compliance and sourcing notes

Available project support can include LVD, EMC, RoHS and FCC-related documentation, depending on the final driver configuration and destination market. BSCI concerns factory social-compliance assessment rather than product electrical certification. A two-year warranty is available for confirmed configurations. Ask us to verify enclosed-fixture suitability against the final wattage, ambient temperature and fixture volume.

For mains-voltage filament bulbs, browse our EU standard LED filament bulb range. For compact capsule and spotlight formats, see G4, G9 and spotlight lamps.

FAQ

What is the difference between DC and AC/DC low-voltage bulbs?

DC-only bulbs require a constant-voltage DC supply or battery. AC/DC bulbs use a driver and bridge circuit designed for compatible low-voltage AC or DC supplies. Do not treat the two versions as interchangeable.

Can a 12V DC bulb run on a 12V AC transformer?

Only a model specified as 12V AC/DC should be used on a 12V AC transformer. A DC-only bulb is intended for a constant-voltage DC supply.

Are these bulbs dimmable?

Dimmable configurations are available, but compatibility depends on the transformer, dimmer and lamp combination. Test samples with the intended control gear before production approval.

Which shapes and bases are available?

The listed range covers A60, C35, G45, G80 and ST64 with E12, E14, B15, E17, E26, E27 and B22 base options depending on model and wattage.

Send us your power-supply and dimmer details

We will match the driver solution, voltage, bulb shape, base and sample plan for your project.

Request samples or a quote

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