G4 LED Bulbs, JC Bi-Pin Base T3, 3W AC/DC 12V, 20W–30W Halogen Replacement, 220–260 Lumens, Warm White 3000K, Non-Dimmable, Landscape, RV & Under Cabinet Lighting

Upgrade your low-voltage lighting with SwitchToLED G4 LED Bulbs, designed to replace traditional 20W–30W halogen bulbs while consuming just 3 watts of power. These energy-efficient bulbs deliver a warm and inviting 3000K warm white glow, making them ideal for interior accent lighting, cabinetry, landscape fixtures, RVs, and decorative applications.

Built with a standard G4 JC bi-pin base, these bulbs install easily into existing 12V AC/DC fixtures—no rewiring required. With advanced 3014 LED chips, they provide stable illumination, reduced heat output, and a long lifespan of 20,000+ hours, significantly reducing re-lamp frequency and maintenance costs.

Engineered for efficiency and safety, SwitchToLED G4 bulbs contain no mercury, lead, UV, or IR radiation, making them eco-friendly and safe for indoor use. Their compact T3 form factor fits a wide range of applications including under-cabinet lighting, puck lights, display cases, furniture lighting, RV interiors, and landscape fixtures.

Key Features

• Energy-Saving Halogen Replacement – Replaces 20W–30W halogen bulbs using only 3W (save up to 85% energy)

• Warm White 3000K Output – Soft, comfortable lighting for accent and task applications

• G4 JC Bi-Pin Base – Standard base fits most 12V G4 fixtures

• AC/DC 12V Compatibility – Works with both AC and DC low-voltage systems

• Long Lifespan – 20,000+ hours reduces replacement frequency

• Eco-Friendly & Safe – No mercury, no UV/IR radiation

• Wide Application – Under cabinets, RVs, landscape lights, display cases, furniture lighting

Technical Details

FAQs

Q1: Are these bulbs dimmable?
No. These G4 LED bulbs are non-dimmable and should not be used with dimmer switches.

Q2: What voltage do these bulbs support?
They operate on AC/DC 12V (10–20V) low-voltage systems.

Q3: Can these replace my 20W halogen G4 bulbs?
Yes. Each 3W LED bulb replaces 20W–30W halogen bulbs while saving up to 85% energy.

Q4: Why do my bulbs flicker after installation?
Flickering may occur if your transformer is not LED-compatible.
Solutions:

1. Replace halogen transformer with an LED driver

2. Keep one halogen bulb in the circuit (do not replace all at once)

Q5: Where can I use these G4 LED bulbs?
Perfect for under cabinet lighting, RVs, furniture lights, display cases, puck lights, landscape fixtures, and interior accent lighting.

Q6: Do these bulbs get hot like halogen bulbs?
No. LED technology produces significantly less heat, improving safety and fixture lifespan.

Q7: Are these bulbs safe and eco-friendly?
Yes. They contain no mercury or lead and emit no UV or IR radiation.

Q8: Are these bulbs larger than standard halogen G4 bulbs?
Yes. Please confirm clearance—these bulbs measure 0.47″ × 1.42″, slightly larger than traditional halogen G4s.