10X Promotional 3W5W7W10W COB LED lamp beads 20mm luminous dimension surface led cob light source

• Power:3W/5W/7W
• Forward Voltage(VF):   3W:  9-11V
•                                   5W: 15-18V
•                                   7W: 21-24V
•                                 10W: 30-36V
• Forward Current(IF):280mA
• Luminous:90-100LM/W
• Color Rendering Index(Ra): >75
• Color Temperature: Warm white 2700-3000K 
•                               Cool white 6000-6500K
• Outline dimension:28mm
• Luminous dimension:20mm
• Life:50000Hr 
• Chip brand: Epistar 
• Beam Angle: 120 degree 
• Operating Temperature:-30~+90degree
• Storage Temperature:-40~+60degree   

 This item include 10PCS 

>Product dimension(unit :mm):

>Features:

1).LED chip is fixed on aluminum layer or aluminum base PCB.the heat from chip can be spread out through aluminum layer rapidly.

2).in normal voltage,small attenuation.attenuation below 1% 2000 hours.

3).the uniform light,soft light,no glare,no injury to the eye.

4).The high reliability,no dead lights,no plaque.

5).The free collocation and combination,from a variety of LED lamps,conventient assembly.

6).The environmental protection.

>Applications:

The Round COB LED lamp beads is widely used for LED bulb,LED cup,LED spot light,LED down light,led Track light, LED project light,LED street lamp and so on.

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