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Sumbulbs Round LED COB Lighting Source Lamp Bulb 3W-200W Circular Chip On Board for Spotlight Down Lights Floodlight DIY LEDs

US $0.50 - 601.32
US $0.84 - 1,002.20 -40%

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Review by exxxi (IT)
Good product.

Item specifics

  • Item Type: LED Bulbs
  • Led Bulb Type: Spotlight Bulb
  • Shape: Globe
  • Certification: ce
  • Certification: FCC
  • Certification: VDE
  • Certification: RoHS
  • Brand Name: sumbulbs
  • Luminous Flux: 2000 Lumens & Above
  • Number of LED Chip: Other
  • LED Chip Brand: Epistar
  • Voltage: Please check the below details
  • Occasion: Living Room
  • LED Chip Model: 2835
  • Beam Angle(°): 120°
  • Average Life (hrs): 50,000
  • Power Tolerance: 5%
  • Color Temperature: Cool White(5500-7000K)
  • Length: 28mm
  • Base Type: Round LED COB
  • Product name: Round COB LED Light Source
  • Diameter/ Size: 20-160mm
  • Lighting diameter: 11-150mm
  • Emitting color: Warm/ Natural/ Cold white
  • Light temperature: 3000K/ 4200K/ 6500K
  • Material: Aluminum-alloy & Silicone rubber
  • Luminous efficacy: >100LM/W
  • Power: 3W - 200W
  • Voltage: Check the below paratmers
  • Useage: LED light, lamp, spotlight, floodlight, car lights...
Product Description


Sumbulbs Round LED COB Lighting Source Lamp Bulb 3W-200W Circular Chip On Board for Spotlight Down Lights Floodlight DIY LEDs





Main Features of Sumbulbs Round LED COB Chip

  • Diameter of COB chip: 20-160mm
  • Emitting diameter: 11-150mm
  • Power: 3-200W
  • Max Current: please check details below
  • Voltage: please check details below
  • Emitting color: Cold whie (6500K), Natural white (4200K), Warm White (3000K)
  • RA: 85%
  • Luminous efficacy: >100LM/W
  • Application: LED spotlight, floodlight, down lights, video light, decoration light, indoor/ ourdoor lamp, DIY LED lights...


Please do carefully check the parameters for every LED COB before using. (Voltage / Current)











What is COB?

COB (Chips on Board) is a new technology of LED packaging of LED light engine. Multi LED chips are packaged together as one light module. When it lights up, it looks like a lighting panel.


How COB LED light source works?

In COB lighting, single LED chips are placed directly on a circuit board (or substrate) which has thermal properties to disperse heat. Heat dissipation is a very important aspect of LED lighting since it can have a major impact on the life expectancy of the luminary. Therefore, COB lighting can have a higher LED chip density and achieve higher light level while maintaining or improving life expectancy.


Advantage of COB:

COB lights are a more efficient form of LED lighting for general or automotive lighting applications because:

- light has a more uniform appearance

- better life expectancy

- achieve higher light level over a large area

- COB is more stable and reliable than standard LED package







Shenzhen Sumbulbs Environment Technology Co., Ltd., is a professional Manufacturer & Servicer for LED Lighting who has around 10-year experience in China.

Sumbubls Company has a complete & scientific Quality Management system, with a number of very experienced engineers and technicians, and is equipped with full of advanced high-tech equipment and production lines.

Sumbulbs mainly focused on the research & development of LED Lighting resource, the designing and producing of LED lights. Products range from COB chip, Ceiling Lights, Spotlights, Crystal Lamp, Tube Lights, Track Lamp, Street Lights, Miner Lamp, Project Lamp, Sunlight Lamp, to Flash Lights etc. Our products are widely used in hotel lighting, room lighting, office lighting, ourdoor lighting and industrial lighting and other lighting projects.

Our products are widely sold to abroad and domestic markets, and got very good high evaluations from our customers.

Quality First” is always the driving power for Sumbulbs People.

Sumbubls, is on the road to be the next excellent GIANT in Environment Lighting.








1. Please do confirm the pricing / shipping and other details with the supplier before you placing an order.

2. Please do make sure that you’ve read the entire description and agree to the transaction before the shopping.

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5. Payments need be finished within 15 days, or the order will be canceled and any promotion discount will be invalid.

10pcs/lot 2011 3W 5W 7W Rounded LED COB Light Source Chip On Board For Spotlight Downlight Red Blue Green White 20mm




Sumbulbs Round LED COB Lighting Source Lamp Bulb 3W-200W Circular Chip On Board for Spotlight Down Lights Floodlight DIY LEDs

1. If the goods is DEFECT/ BROKEN when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or refund. But the goods must be back in factory condition. Please contact us in advance and double check the return address before you return it.

2. If item is defective in 3 months, we could send you a new replacement for free or offer full refund after we receive the defective item.

3. If item is defective in 12 months, we could also offer you replacement service, but you have to pay for the extra shipping expenses.


Our aim is to provide Top Level Customer Service, and our customer service specialists are always standing by to solve any of your problem.

We greatly appreciate your 5-STAR POSITIVE feedback and please do not leave a NEGATIVE feedback without asking for help.


Sumbulbs Round LED COB Lighting Source Lamp Bulb 3W-200W Circular Chip On Board for Spotlight Down Lights Floodlight DIY LEDs


  • 5 Stars 89%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 11%
  • 1 Star 0%
4.7 / 5

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