Chengdu Senlu Electric Co.,Ltd
Product features: ●System efficiency to 110Lm/w, Citizen COB or Cree /Bridge lux Arrays adopted, converting more power to light . ●Power factor at 0.99, THD<10% ●CE and RoHS certificated ●Optional automatic photosensor control ●Optional Module lamp ●Optional Solar /Wind energy system ●High...Chat Now
●System efficiency to 110Lm/w, Citizen COB or Cree /Bridge lux Arrays adopted, converting more power to light .
●Power factor at 0.99, THD<10%
●CE and RoHS certificated
●Optional automatic photosensor control
●Optional Module lamp
●Optional Solar /Wind energy system
●High color rendering index, minimum at Ra80
●IP65 water and dust proof , and aluminium alloy fixture with corrosion resistance .
●Idear replacement for HID and metal halide light
●Color tempreture 2700k-6500k
●Optional intelligent dimmer control system
COB/Array Brand: Citizen COB
Color Temperature：3000K/5000K (2700K~6500K optional)
LED Efficacy: 140Lm/W
Material of LED Lens: Optical glass
Light Transmission of LED Lens: 95%
Beam Angle: 45, 65, 85,120 degree
Input Voltage: 180~260V / 90~130V
Output Current: 0.45A
Total Power Consumption: 100W
LED Power Consumption: 90W
Power Efficiency: 0.9
THD: less than 10%
HID Replacement: 250W
Average Lifespan：50000 hours
IP Rating: IP65
Fixture Material: Aluminum alloy
Ambient Temperature: -40~+45℃
Dimensions (H*D): 466*411*110
Comparison between COB street light and SMD street light.
1, SMD needs to be attached in a bracket, this will lead thermal resistance; then the bracket will be welded in the PCB board, the bracket between PCB board will lead thermal resistance too; furthermore, the PCB board has 3 layers, in the middle of the 3 layers of PCB board, it will also lead to thermal resistance; then the PCB board just attached in the heatsink, they have to use adhesive to attach it, but since the PCB board is very big, in order to reduce cost, they have to use the lower adhesive for not more than 0.3USD/G,the conductivity coefficient of the adhesive could be 2w/m.k,and the thermal resistance will be led more. Therefore, the heat dissipation will not be good since there are many thermal resistance led. There are many small chips, as time went by ,if one of the chip is broken, the whole current of the other chips will be increased, then the chips will be broken one by one.
2),COB no other obstruct, it directly attached in the heatsink, and this could ensure the good heat dissipation. We use the adhesive for 2USD/G,and the conductivity coefficient of this adhesive could be 20w/m.k.And one driver control one cob, so the cobs won’t affect each other.
2,Most conditions, most SMD street light adopt die cast aluminum(ADC12), and the heat conductivity coefficient could be only 96w/m.K;while our COB street light use extrusion aluminum(AL6063), the coefficient could be 201W/m.K.
3,The SMD has a pc cover in around the chips, as time went by, it will turn yellow, this will lead to luminous depreciation, and also they will use tempered glass to cover outside the lamp.While the COB don’t have this kind of pc cover, even we will use a optical glass covers the cob, but the glass won’t form lumens depreciation.
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