United First Technology Co., Ltd | Leading LED Filament & Specialty Lighting Manufacturer

About United First

United First Technology Co., Ltd is a specialized manufacturer focused on LED filament light sources and a wide range of specialty lighting products. With advanced production facilities in both Shenzhen and Bijie, we combine innovation, quality control, and scalable manufacturing to serve global markets.

Our product lines include G4, G9, R7S, E12, and E14 series lamps, designed for residential, commercial, and industrial applications. We are committed to energy efficiency, long lifespan, and environmental sustainability in every product we deliver.

2 Factories

Shenzhen & Guizhou

LED Innovation

Filament & Specialty

Our Product Lines

High-performance LED lighting solutions engineered for reliability, energy efficiency, and long-term value. Explore our core product series below.

G4 Series

Low-voltage bi-pin LED lamps ideal for under-cabinet lighting, display cases, and decorative fixtures. Available in multiple color temperatures and lumen outputs.

12V / 24V DC
2W to 6W options
3000K to 6000K

G9 Series

Capless loop-pin LED bulbs for halogen replacements. Perfect for chandeliers, wall sconces, and modern fixtures. High CRI and flicker-free operation.

220-240V AC
3W to 9W options
Dimmable versions available

R7S Series

Linear double-ended LED tubes for floodlights, security lights, and high-bay fixtures. Direct replacement for traditional halogen R7S lamps.

78mm to 118mm lengths
10W to 25W power
360° beam angle

E12/E14 Series

Candelabra and small Edison screw base LED bulbs. Ideal for chandeliers, vanity lights, and decorative fixtures where smaller bases are required.

E12 (North America)
E14 (Europe/Asia)
Flame tip & globe styles

LED Filament Series

Vintage-style LED filament bulbs with 360° light distribution. Designed for exposed bulb fixtures, pendants, and statement lighting.

Clear & amber glass
E26/E27 bases
4W to 12W equivalents

G9 Series (New)

Enhanced G9 LED bulbs with improved heat dissipation, longer lifespan (up to 30,000 hours), and superior color rendering (CRI >90).

Ultra-thin design
30,000 hour life
CRI >90

R7S Series (New)

Next-generation linear LEDs with aluminum heat sinks, higher lumen output, and improved thermal management for continuous operation.

120+ lm/W efficiency
IP40 rated
5-year warranty

E14 Series (New)

Modernized E14 base LEDs with improved optics, reduced glare, and enhanced dimming compatibility for residential and hospitality use.

2700K to 4000K
360° beam
Trailing-edge dimming

Why Choose United First?

Advanced Technology

Utilizing the latest in LED filament and driver technology to ensure high efficiency, low heat, and long operational life across all product lines.

Dual Manufacturing Hubs

Production facilities in Shenzhen and Bijie enable scalable output, quality control, and fast delivery to global markets.

Quality & Compliance

All products undergo rigorous testing for safety, performance, and reliability. Compliant with international standards.

Frequently Asked Questions

Where are United First's factories located?

United First operates two main production facilities: one in Bao'an District, Shenzhen City, and another in Qixingguan District, Bijie City, Guizhou Province, China.

What are the main product lines offered?

Our core product lines include G4, G9, R7S, E12/E14, and LED Filament series lamps. We also offer updated versions of G9, R7S, and E14 series with enhanced performance.

Are the LED lamps dimmable?

Many of our G9 and E14 series lamps are dimmable. Please check product specifications or contact us for dimming compatibility details.

What is the typical lifespan of your LED products?

Most of our LED lamps have a rated lifespan of 25,000 to 30,000 hours, depending on the model and usage conditions.

Do you offer OEM/ODM services?

Yes, United First provides OEM and ODM services for lighting brands and distributors worldwide. Contact us for partnership opportunities.

Get in Touch

For inquiries, samples, or partnership opportunities, reach out to our team directly.

WhatsApp/WeChat: 0086-13926507875

Email: [email protected]

Shenzhen Factory: 5th Floor, Building A, Zhifuzhaoye Technology Innovation Park, Sanwei Community, Hangcheng Street, Bao'an District, Shenzhen City

Guizhou Factory: 33 Factories in Qixingguan District Economic Development Zone, Bihai Street, Qixingguan District, Bijie City

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