It is an incandescent bulb, so yes, it should be dimmable.

Vstar G4 12V 20W Bulb JC Type Bi-Pin Light,Clear, G4 Bi-pin Base Lamp(20W 10Pack)

Vstar G4 12V 20W Bulb JC Type Bi-Pin Light,Clear, G4 Bi-pin Base Lamp(20W 10Pack)

Q: Are these suitable for outdoor landscape lighting use?

I use them in a waterproof housing under water in a water feature in our back deck. I think general outdoor use would depend more on the housing than on the bulb itself.

Q: Can this be used in my lava lamp? next to where the bulb is inserted it says to use g4 120v 35w type bulbs. thanks in advance.

No. The Vstar bulb is 12 Volts not 120 volt. Check that the base of a replacement bulb is the same base as the original in the lava lamp.

Q: Does anyone know the kelvin on these? are they bright white or horrible yellow?

Sorry, no idea what the Kelvin rating might be but the light they give off is bright white.

Product ID: 369461764

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Details

Brand
VSTAR
Light type
Halogen
Special features
G4 Halogen 20
Wattage
20 watts
Bulb shape/size
JC

💡20W bright halogen power

📏4mm precise bi-pin spacing

🔋12V low voltage efficiency

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Description

💡 Light up your lifestyle with precision and power!

LONG LASTING GLOW - Up to 2,000 hours of reliable, consistent lighting—less hassle, more brilliance.
COMPACT G 4 BI PIN DESIGN - Sleek 4mm pin spacing ensures seamless compatibility with modern fixtures.
BRILLIANT 20 W ILLUMINATION - Power your space with crisp, clear light that enhances any environment.
ENERGY SAVVY 12 V OPERATION - Low voltage efficiency that balances brightness with smart energy use.
VERSATILE AMBIANCE CREATOR - Perfect for home, office, restaurants, and retail spaces—elevate every setting.

The Vstar G4 12V 20W JC Type Bi-Pin Halogen Bulb delivers bright, efficient lighting with a compact 4mm bi-pin base. Designed for versatile use in homes, offices, and commercial spaces, it offers up to 2,000 hours of long-lasting illumination, combining energy-smart 12V operation with reliable halogen performance.

Specifications

Manufacturer	Heshan VSTAR Lighting
Item model number	G4
Product Dimensions	0.79 x 0.79 x 3.05 cm; 10 g
ASIN	B01K4CNVYU

Have a Question? See What Others Asked

Are these suitable for outdoor landscape lighting use?

Is this dimmable ?

Can this be used in my lava lamp? next to where the bulb is inserted it says to use g4 120v 35w type bulbs. thanks in advance.

Does anyone know the kelvin on these? are they bright white or horrible yellow?

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