5-40W Factory Price CFL Half Spiral Light Bulb

5-40W Factory Price CFL Half Spiral Light Bulb

Product description:

Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: GEM
  • Model Number: DEM
  • Principle: CFL
  • Shape: half spiral
  • Hot Searching Product: cfl half spiral light bulb
  • Half Spiral Bulb Power: 5-40w, 45-105w
  • Working Voltage: 110-130V; 220-240V
  • Advantages: save energy, long lifetime, eco-friendly
  • Color Temperature: 2700-6500K
  • Lifetime: ) 8000hours, or ) 6000hours
  • Tube Powder Material: tri-phosphor, or mixed powder
  • Main Sales Market: South-east Asia and others
  • Color Rendering Index: ) 80Ra
  • CFL Light Bulb Power Factor: ) 0.5

Packaging & Delivery

Packaging Details: Box (color box/ foam box/ blister box) + Carton; 1piece/ box; 50-100pieces/ carton, carton size is according to the detailed lamps.
Delivery Detail: 25-40 days after making the confirmation of order


cfl half spiral light bulb
1. lifetime: ) 8000hrs, or) 6000hours
2. power: 5-40w, 45-105w
3. color: 2700-6500k
4. CE, ROHS, ISO9001

5-40W Factory Price CFL Half Spiral Light Bulb

The Specifications of CFL Half Spiral Light Bulbs

Item half spiral cfl light bulb
Model No. DEM
Power 5-40Watt, 45-105Watt
Voltage 110-130V, 220-240V
Lifetime ≥8000Hours; ≥6000Hours
Tube Dia T4 (11-12mm) ,T3 (9-10mm0, T2 (7-8mm)
Packing 1 piece/ box; 50-100 boxes/ carton
Carton Size according to the detailed lamps
Lamp Base E14/ E26/ E27/ B22
Color Temperature 2700K/ 4000K/ 6400K or others
Luminous Efficacy ) 50-70lm/ w

If you want to know more specs of different shapes and powers lamps, just feel freeto contact us. Our pleasure to provide information for you.

The Structure of CFL Half Spiral Light Bulbs

Lamp BaseMaterial: Nickle plated Iron/ Copper/ Aluminum
Base Type: E14/ E26/ E27/ B22
BallastSpecialized Ballast, excellent design and assembling, 8000hours
Lamp TubeShape: half spiral
Powder Material: tri-phosphor, or mixed powder
Plastics MaterialPBT (fireproof) or other material

Principles and Features of CFL Light Bulbs

CFL Light Bulb is a type of light bulb which uses fluorescence as its primary means of creating visible light. A CFL consists of a glass tube which is coated with a fluorescent material on the inside. Fluorescent materials are able to absorb certain frequencies of light and then glow, emitting new light at a greater wavelength than they absorbed. CFL tubes are filled with a mixture of gases containing trace amounts of mercury which becomes excited and emits ultraviolet light when an electrical current is sent through it. The ultraviolet light is absorbed by the fluorescent coating on the inside of the glass tube, and is converted into visible light which has a longer wavelength than ultraviolet light. The amount of energy needed to excite the gas is far less than the amount of energy needed to heat up the filament in a normal light bulb, and as a result, less energy is lost in the form of heat.

Advantages of CFL Half Spiral Light Bulbs

  • No flicker, no glare, soon start.
  • small size, wonderful design, beautiful appearance.
  • 80% energy saving than ordinary incandescent lamp, save cost.
  • more than 8000hours lifetime, much longer than incandescent lamp.
  • Excellent color rendering index.
  • Energy Saving Bulb With PBT fireproof plastics material.
  • Eco-friendly, eyes-protection.
  • All color temperatures to choose, 2700-6500K optional
  • Application: Marketplaces, hotels, houses, offices museums etc.

Comparision Between GEM CFL Light Bulbs and Other Normal Lamps

Pictures of CFL Half Spira Light Bulbs

The Production Process of GEM CFL Light Bulbs

Our Lighting Exhibitions









Our Services:

ReputationOur company has set up a reliable reputation around the world
ServiceGood service are waitng for your visiting
InquiryAny inquiries will be replied within 24 hours.
EfficiencyFinish your requirements as soon as possible.
ConceptGEM.That means green, economic and modern.
Quality is first, service is second and the business is the third.
Customer is first, staff is second and business the third.

Company Information:

  • Company Name: Hangzhou JingJie Electronic Lighting Co., Ltd
  • Specialized Products: Energy Saving Lamp, Ballast, Indoor LED lamp
  • Establish Time: Established In 2003
  • Brand: GEM
  • Company Location: 16# HeTing Road, QingShan Industrial Park, Lin'an, Hangzhou City of China
  • 4 years gold supplier in alibaba, China.


With the mission of quality first', the strictly control of QC, and the six xigema management , Most of our products have been granted CE Rosh certifications, have passed ISO9001 quality management system , also have been audited by TUV as the Global Manufactory and hold a GMC certification. customer is God is our service aim, we have customers in European, South Asia , South America, Africa, and other areas , we are looking forward your attend and do long business with you , we are surely to offer you a good service.


Q: What's the deliver time?

25-40 days after making the order.

Q: What's the MOQ?

2000 pieces; However, more quantities, more cheaper the prices are.

Q: Are samples free?


Q: How to send the samples?

1. via internatioanl EMS; 2. via internatioanl express: DHL, TNT, FedEX, UPS

Q: What's the payment?

T/ T, 30% deposit before production, 70% balance to be paid before shippmet; L/ C at sight.

Q: Where are our main markets in the world?

North America, South America, Europe, South-east Asia. Besides, we want to explore other international market in the world.

Q: How Is the package of CFL Half Spiral Light Bulbs?

Box (color box/ foam box/ blister box) + carton. 1piece/ box; 50-100pieces/ carton, carton size is according to the detailed lamps.

Business begins from friends.So just feel free to contact us. we will be very proud.