天花灯筒灯COB LED筒灯

型号：	AS-DL0620W
品牌：	Auroras
原产地：	-
类别：	电器、照明 / 照明 / LED灯
标签︰	COB LED筒灯 , COB LED天花灯 , COB 天花筒灯
单价：	¥260 / 件
最少订量：	10 件

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产品描述

what is COB

There are basically 3 LED configurations:

LEDs in cylindrical packages

SMD LEDs (Surface Mounted Device)

COB LEDs (Chip On Board)

COB, (Chips on Board) , multi LED chips are packaged together as one

lighting module. When it light up, it looks like a lighting panel..

Why COB? --Background

LED(light emitting diode) is new technology with advantage of saving

energy and very long lifespan. But all LED lightsource can not be

faultless especially SMD, HP, flux LED etc. Compare to traditional

lighting such as fluorescent lamp, as it is super bright in a small

size, it cause uncomfortable glare. In case of no diffused optical lens

used, such LEDs usually cause glare and zebra strips . But when optical

lens or cover used, it will cause light loss when LED beam pass through

this lens or cover.

How COB LED Light source works

COB LED is multi chips packaged, it can 10 times more increase lighting

area, so it avoid uncomfortable glare by the maximum extent.

Auroras Lighting uses small size of chips to make COB LED package.

By now, for small size chip, ?some famous LED chip manufacturer can

reach 249lm/watt @ 20mA. But big size LED chip can only reach 161lm/watt

@350mA. The light efficacy decrease when chip size is bigger. Also when

LED driver increase current to LED, the light efficacy per watt is even

low.

The COB with small size chips will be a trend of LED light source

package.

We holds the patent for invention for COB LED and lamp.

Advantage of COB？

1, less thermal resistance .

Among different LED components such as high power LED, SMD, dip etc, COB

LED is the best in less thermal resistance and cooling.

For high power LED, the total Thermal Resistance are a. LED attach, b.

Slug, c. Epoxy, d. PCB

Thermal Resistance: A+B+C+D

But for COB LED, are only . a. LED attach + d. PCB.

Thermal Resistance: A+D

So the COB LED is less thermal resistance, so the heat generated from

LED chip can conduct outside quickly. Then assure the LED has long

lifetime and high quality.

2, larger cooling area for LED chips.

3, Better light effect,No glare,protect eyes.

4, higher light efficacy.

Application of COB Technology

1, COB LED light sources

2, LED lighting fixture which use COB LED light source

会员信息

珠海市汇彩照明有限公司
国家/地区︰	广东省珠海市
经营性质︰	生产商
联系电话︰	18023075361
联系人︰	郑经理 (销售经理)
最后上线︰	2015/12/14