---
product_id: 43361957
title: "G4 LED Bulb 3 Watt Bi-Pin Base 12V AC/DC 2700K Warm White Dimmable Waterproof T3 G4 30W LED Halogen Replacement 5Pack (3)"
brand: "ukey u"
price: "HK$244"
currency: HKD
in_stock: true
reviews_count: 8
url: https://www.desertcart.hk/products/43361957-g4-led-bulb-3-watt-bi-pin-base-12v-ac
store_origin: HK
region: Hong Kong
---

# 3W ultra-efficient power 300 lumens bright output 90% energy savings G4 LED Bulb 3 Watt Bi-Pin Base 12V AC/DC 2700K Warm White Dimmable Waterproof T3 G4 30W LED Halogen Replacement 5Pack (3)

**Brand:** ukey u
**Price:** HK$244
**Availability:** ✅ In Stock

## Summary

> 💡 Light smarter, live brighter — the future of cozy, eco-friendly illumination!

## Quick Answers

- **What is this?** G4 LED Bulb 3 Watt Bi-Pin Base 12V AC/DC 2700K Warm White Dimmable Waterproof T3 G4 30W LED Halogen Replacement 5Pack (3) by ukey u
- **How much does it cost?** HK$244 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/43361957-g4-led-bulb-3-watt-bi-pin-base-12v-ac)

## Best For

- ukey u enthusiasts

## Why This Product

- Trusted ukey u brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **360° Radiance:** COB LED chip delivers a full 360-degree beam angle for seamless, even lighting.
- • **Long-Lasting Glow:** Over 20,000 hours lifespan means fewer replacements and less hassle.
- • **Plug & Play Upgrade:** Standard G4 base fits instantly—dimmable and ready to transform your space.
- • **Brilliant Efficiency:** Replace 30W halogen with just 3W and save over 90% on your electricity bill.
- • **Warm Ambiance, Zero Harm:** 2700K warm white glow with no UV/IR radiation—safe for your eyes and health.

## Overview

The G4 LED Bulb 3W is a high-efficiency, dimmable warm white light source designed to replace traditional 30W halogen bulbs. Operating at 12V AC/DC with a 360° beam angle and 2700K color temperature, it delivers 300 lumens of flicker-free, eye-safe illumination. With an impressive 20,000-hour lifespan and over 90% energy savings, this waterproof T3 bulb is perfect for indoor G4 socket fixtures, offering effortless installation and eco-friendly performance in a convenient 5-pack.

## Description

G4 LED Bulb 3 Watt Bi-Pin Base 12V AC/DC 2700K Warm White Dimmable Waterproof T3 G4 30W LED Halogen Replacement 5Pack (3)

## Features

- ENERGY SAVING: Lower Consumption and Higher Brightness,Replace 30W Halogen Lamp ,Save over 90% on Electricity Bill of Lighting.125 Days Just 1KWH(4 Hours per Day/pc)
- ECO-FRIENDLY:No UV or IR Radiation,No Flicker,No Lead or Mercury,No harm to your health and Protect your eyes
- LIGHT ANGLE:360 degree beam angle, G4 12V LED bulb use COB packaged LED Chip, 280-300 lm, 2700-2900k Warm
- REDUCE RE-LAMP FREQUENCY:Lifespan is over 20000 hrs,save effort and maintenance costs on changing bulbs frequently
- EASY INSTALLATION::Standard G4 base,can be easily fitted instead of ordinary halogen bulbs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Ukey U |
| Light Type | Halogen |
| Special Feature | 2700K color temperature, Instant On, No UV or IR Radiation, Dimmable, No lead or mercury |
| Wattage | 3 watts |
| Bulb Shape Size | T3 |
| Bulb Base | G4 |
| Incandescent Equivalent Wattage | 30 Watts |
| Specific Uses For Product | G4 Socket all lights |
| Light Color | Warm White |
| Voltage | 12 Volts |
| Unit Count | 5 Count |
| Color Temperature | 2700 Kelvin |
| Number of Items | 1 |
| Brightness | 300 Lumen |
| Shape | Bulb |
| Material | copper |
| Indoor/Outdoor Usage | Indoor |
| Controller Type | Push Button |
| Power Source | Corded Electric |
| Color Rendering Index | 85.00 |
| Beam Angle | 360 Degrees |
| Power Consumption | 3 Watts |
| Item Package Quantity | 5 |
| Light Source Type | LED |
| Specification Met | ETL |
| Light Source Wattage | 3 Watts |
| Control Method | App |
| Average Life | 20000 Hours |
| White Brightness | 300 Lumens |
| Efficiency | A+ |
| Manufacturer | Ukey U |
| Connectivity Technology | Normal bulb |
| UPC | 636823479800 |
| Part Number | UL005 |
| Item Weight | 0.81 ounces |
| Product Dimensions | 0.6 x 0.6 x 1.5 inches |
| Is Discontinued By Manufacturer | No |
| Assembled Height | 1.5 inches |
| Assembled Length | 0.6 inches |
| Assembled Width | 0.6 inches |
| Style | LED |
| Color | Clear |
| Number of Lights | 5 |
| Special Features | 2700K color temperature, Instant On, No UV or IR Radiation, Dimmable, No lead or mercury |
| Shade Material | Plastic |
| Light Direction | Up/Down Light |
| Batteries Included? | No |
| Batteries Required? | No |
| Base Type | G4 |
| Wattage | 3 Watts |
| Bulb Features | Dimmable |
| Bulb Diameter | 0.6 Inches |
| Bulb Length | 1.5 Inches |
| Start Up Time | right away |
| Lumen Maintenance Factor at the End of Life | 280.00 |

## Product Details

- **Brand:** Ukey U
- **Light Type:** Halogen
- **Special Feature:** 2700K color temperature, Instant On, No UV or IR Radiation, Dimmable, No lead or mercury
- **Wattage:** 3 watts
- **Bulb Shape Size:** T3

## Images

![G4 LED Bulb 3 Watt Bi-Pin Base 12V AC/DC 2700K Warm White Dimmable Waterproof T3 G4 30W LED Halogen Replacement 5Pack (3) - Image 1](https://m.media-amazon.com/images/I/51kuWG2K9pL.jpg)
![G4 LED Bulb 3 Watt Bi-Pin Base 12V AC/DC 2700K Warm White Dimmable Waterproof T3 G4 30W LED Halogen Replacement 5Pack (3) - Image 2](https://m.media-amazon.com/images/I/51kZxVSNesL.jpg)
![G4 LED Bulb 3 Watt Bi-Pin Base 12V AC/DC 2700K Warm White Dimmable Waterproof T3 G4 30W LED Halogen Replacement 5Pack (3) - Image 3](https://m.media-amazon.com/images/I/51g+FPm1bDL.jpg)
![G4 LED Bulb 3 Watt Bi-Pin Base 12V AC/DC 2700K Warm White Dimmable Waterproof T3 G4 30W LED Halogen Replacement 5Pack (3) - Image 4](https://m.media-amazon.com/images/I/616Kv-wug-L.jpg)
![G4 LED Bulb 3 Watt Bi-Pin Base 12V AC/DC 2700K Warm White Dimmable Waterproof T3 G4 30W LED Halogen Replacement 5Pack (3) - Image 5](https://m.media-amazon.com/images/I/71FLzoCCUSL.jpg)

## Questions & Answers

**Q: What is the width of the G4 T3 3 watt (30W equivalent)?**
A: Thank you for you question! the width of two pin is 4mm;and it is 30W equivalent

**Q: I am replacing 18 halogens with these ukey 3w dimmable leds. does anyone have a recommendation on a dimmable transformer i should obtain?**
A: I’ve had a good experience with this one. I’ve mounted the box on top of a cabinet and I aim the remote at the ceiling. The dial adjusts the overall power and the remote has a 15 sec. exit feature. I have three of these and they’ve been working well for over 6 yrs.

LED Wholesalers PWM Dimmer for LED Lighting with 12 Button Wireless Remote 12 to 24 Volt 6 amp, 3317-DM 

For some bizarre reason, Amazon won’t let me post the link to an item they sell for LED Wholesalers.

Good luck with your retrofit.

**Q: Will these bulbs work with a typical halogen transformer?  such as https://www.amazon.com/let-60-class-electronic-transformer-lightech/dp/b002rsouls/**
A: Based on the specs, it should work just fine.

**Q: will 7 volts ac light this bulb**
A: I don't know. The packaging says 12v acdc. I use them with a 12vac system. The apparently have a integral rectefier in the circuitry, as the LED's are dc. Try a adjustable power supply. 7 volts? It sounds like you are connecting them to 2 18650's? Watch your current.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Update for Old Incandescent Bulbs
*by J***A on December 16, 2020*

Updated a KitchenAid microwave/vent hood with these bulbs and the the clean, bright light is great! Advise that you go up one power level - The 3 watt LED bulbs are perfect replacement for the former 20 Incandescent bulbs. They also dim (there is a nightlight switch) without any issue. Good Stuff!

### ⭐ Short useful life.
*by K***X on July 25, 2021*

Poor longevity: Two of the five failed in the first three months of use. The first one just stopped working. The second flickers like crazy. I tried rotating these lights to other locations (my range hood powers four lights) , but the bad lights remain bad wherever they are plugged in. I am using these on a high-end range hood which supports two brightness levels for halogen lights; there is no such dimming with these bulbs.

### ⭐⭐⭐⭐ Four Stars
*by D***E on October 4, 2017*

Fit well. A bit dimmer than the 20watt halogens.

## Frequently Bought Together

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-27*