cob led bulb 5w e27 3 year warranty CE ROHS

cob led bulb 1.e27 led bubl lamp light with epistar led 2.Wide Angle: 120 degree 3.7W CE,ROHS 4.Warranty 3 years

Product name : cob led bulb 5w e27 3 year warranty CE ROHS

1.What is COB ?

Chip-on-Board, or COB, refers to the semiconductor assembly technology wherein the microchip or die is directly mounted on and electrically interconnected to its final circuit board, instead of undergoing traditional assembly or packaging as an individual IC. The elimination of conventional device packaging from COB assemblies simplifies the over-all process of designing and manufacturing the final product, as well as improves its performance as a result of the shorter interconnection paths.

2.COB Advangage

1)  Heat dissipation :  Fast Cooling speed , Reduced space requirements,

2)  Production process : Higher reliability due to better heat distribution and a lower number of solder joints;

3)  Optimized thermal management : Heat distributed across a larger surface for immediate dissipation, with lower junction temperature, which brings improved Lumen Maintenance over product lifespan.

3. Item Feature

1) Body : Delicate and beautiful appearance, Compared to traditional LED heatsink,The Fans-Cooling dissipating area is bigger, air convection is better,the temperature will be lower at least by 8º than commom design, the weight ofthe cooling structure is lighter , ony 50%-60% of the traditional cooler. 

2) Cover : The cover adopt fire-proof material, light transmittance up to 93%.

4) Chips : The COB led made of 0.2w Epistar chips , Efficiency is 90-100LM/ W.

5) Driver : Input 85-265V, Adopt series circuit,with  function of automatic protection circuit.

6) Quality : Long lifetime up to 50,000 hours,  certificate CE, ROHS, FCC, SAA, C-Tick.  

4. Item Parameters

Power	5W
Product code	SP-F-BULB-COB-5W
Color temperature	Warm white: 2800-3200K
	Natural white: 4000-4500K
	Pure white: 6000-6500K
LED chip quantity	25pcs
LED lighting efficiency level	110-120LM/W
LED chip	Epistar
Material	Aluminum+ PMMA glass
Input voltage	AC 85-265V
Beam angle	140 degrees
Power Factor	0.95
Power efficiency	>87%
LED luminous efficiency	450-500LM
Color Rendering Index	Ra>80
Lamp Base	E27 only
Dimension	Dia49xH99mm
Net weight	0.06KG
Dimmable	Available

5w cob led spotlight  equivalent to 30w-40w halogen lamp

7w cob led spotlight  equivalent to 50w-60w halogen lamp

10w cob led spotlight  equivalent to 80w-90w  halogen lamp

5.Item Photoes