Went here today and picked up the LEDs. He did not have the drivers or lenssyed.ali wrote:
I bought LEDs, PCB, Drivers from the Akash Enterprise, 196 Lajpat Rai Market.
LED lighting Setup from scratch
- khamba
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Re: LED lighting Setup from scratch
- sushant
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Re: LED lighting Setup from scratch
1) Why do you need a kabadi store??????????juanico wrote:nice work. it encouraged me to try it as well.
just 2 questions:
1. do you have the address or number of the Kabadi store...baghirat palace is so big...
2. why do you need a pcb? you can't solder the wire directly to the led? never done this before, that's why this stupid question...
2) The PCB here serves two main function:
i) Works as a heat spreader, channelizing the heat generated by the leds to heat sink.
ii)serves as a contact point(soldering junction) along with electrical isolation of both the terminals
Sushant
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Re: LED lighting Setup from scratch
because syed ali mentioned it in his first post:sushant wrote: 1) Why do you need a kabadi store??????????
syed.ali wrote: So here it start, everything is procured locally from bhagirath palace market or from Kabadi Shop
thanks for the info.sushant wrote: 2) The PCB here serves two main function:
i) Works as a heat spreader, channelizing the heat generated by the leds to heat sink.
ii)serves as a contact point(soldering junction) along with electrical isolation of both the terminals
- khamba
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Re: LED lighting Setup from scratch
juanico wrote:
because syed ali mentioned it in his first post:
Kabadi means "junk" in Hindi. So what syed was saying is he picked up the heatsink from a junk dealer.
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Re: LED lighting Setup from scratch
hahaha, thanks
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Re: LED lighting Setup from scratch
khamba wrote:Went here today and picked up the LEDs. He did not have the drivers or lenssyed.ali wrote:
I bought LEDs, PCB, Drivers from the Akash Enterprise, 196 Lajpat Rai Market.
did you buy the 3W led?
how many lumen do they produce? which colour temperature?
if you do not know, could you please share the exact name or labelling of the led?
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Re: LED lighting Setup from scratch
Yes, 3W Seoul LEDs. The retailer had no knowledge but the packing had the following info:juanico wrote:
did you buy the 3W led?
how many lumen do they produce? which colour temperature?
if you do not know, could you please share the exact name or labeling of the led?
Part # is W42180-06 and the Bin Code is U1SYNJ. The website is seoulsemicon.com
Their own website did not have exact details but from other websites selling their products I understand that the colour temperature is 6300k and lumens is 91-100
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Re: LED lighting Setup from scratch
Hi Khamba,
This looks like a very outdated stuff.
100 lumens at 3.8 W
About 25lumens per watt.
You ll be better off with CFL which is much much better 60lumens per watt. Or a normal Philips T5 can give you 80-90lumens per watt.
Don't waste much money unless its for experiment/play.
This could be the VERY REASON why sellers don't mention part number.
This looks like a very outdated stuff.
100 lumens at 3.8 W
About 25lumens per watt.
You ll be better off with CFL which is much much better 60lumens per watt. Or a normal Philips T5 can give you 80-90lumens per watt.
Don't waste much money unless its for experiment/play.
This could be the VERY REASON why sellers don't mention part number.
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Re: LED lighting Setup from scratch
Khamba ji , I think you saw just half part. I got Belo info on mouser. The 100lm is when its run at 1w, and the lumens keep decreasing from there on as you keep increasing power.
Don't forget to see this product is being discontinued
http://in.mouser.com/Search/m_ProductDe ... FbiezfTaE2
Specifications
Manufacturer:
Seoul Semiconductor
Product Category:
High Power LEDs - White
RoHS:
Illumination Color:
Cool White
Color Temperature: 6300 K
Luminous Flux:
108 lm
Viewing Angle: 127 deg
Forward Current:
350 mA
Forward Voltage:
3.25 V
Don't forget to see this product is being discontinued
http://in.mouser.com/Search/m_ProductDe ... FbiezfTaE2
Specifications
Manufacturer:
Seoul Semiconductor
Product Category:
High Power LEDs - White
RoHS:
Illumination Color:
Cool White
Color Temperature: 6300 K
Luminous Flux:
108 lm
Viewing Angle: 127 deg
Forward Current:
350 mA
Forward Voltage:
3.25 V
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Re: LED lighting Setup from scratch
found this on the net http://flashlightnews.net/forum/index.p ... 537.0;wap2, probablythis will be helpful in finalizing the LEDs.
Sushant