LED SMD 5050 Bulbs
We currently have 12SMD 5050 Cool White Led bulbs In 2 scone type lights in the rear of our 5er above our reclining chairs. These Led bulbs in theses scones do not allow for enough light for reading w...
Forum Discussion
3 watts goes in
One watt worth of light
3 amps goes in
Two watts worth of light
Now. Where or where do those extra watts go?
Electromagnetic force? Microwaves? Spin a motor? Sound waves?
Energy just does not disappear. Three watts in - one watt worth of light.
Oh where oh where does it go?
The biggest obstacle with LED lighting is the chip versus heat sink area ratio.
This is why many lamp peddlers lie so bad about wattage and lumens. They use a 3-watt chip, then discover it needs a heatsink far in excess of what the boutique lamp body can handle. So they cut way way back on the driver current. Tah-Dah! A one watt lamp advertised as a three watt.
I've tried LED bulbs versus a standard 1156 in scone lamps. The incandescent bulbs were light years brighter than twenty dollar highly touted LED bulbs.
I don't flip on a light to get eye strain.
And I am not too crazy about spending 35 dollars for a heat sink and multiple fans for a 300 watt large area lamp.
The standard convection heat sink for a 10 watt high quality CREE or Bridgelux chip is ninety millimeters in diameter. Three inches and change. And an inch thick. And twelve dollars.
The 37-watt PAR LED floodlight in my kitchen weighs three pounds and some-odd ounces.
THAT is the reason greatly enhanced lumen output excites me, not merely energy usage.
One watt worth of light
3 amps goes in
Two watts worth of light
Now. Where or where do those extra watts go?
Electromagnetic force? Microwaves? Spin a motor? Sound waves?
Energy just does not disappear. Three watts in - one watt worth of light.
Oh where oh where does it go?
The biggest obstacle with LED lighting is the chip versus heat sink area ratio.
This is why many lamp peddlers lie so bad about wattage and lumens. They use a 3-watt chip, then discover it needs a heatsink far in excess of what the boutique lamp body can handle. So they cut way way back on the driver current. Tah-Dah! A one watt lamp advertised as a three watt.
I've tried LED bulbs versus a standard 1156 in scone lamps. The incandescent bulbs were light years brighter than twenty dollar highly touted LED bulbs.
I don't flip on a light to get eye strain.
And I am not too crazy about spending 35 dollars for a heat sink and multiple fans for a 300 watt large area lamp.
The standard convection heat sink for a 10 watt high quality CREE or Bridgelux chip is ninety millimeters in diameter. Three inches and change. And an inch thick. And twelve dollars.
The 37-watt PAR LED floodlight in my kitchen weighs three pounds and some-odd ounces.
THAT is the reason greatly enhanced lumen output excites me, not merely energy usage.
