Hi there. I need 660 nm red light for plant growth. I don't have any experience with electronics but I have the following setup from my research on the internet:
Thank you. Connecting them parallel and using 12 V power source is a nice idea. Now, I am planning to buy :I bought 4 x 10W LEDs very similar to the above. I mounted them with thermal epoxy on a 150mmx100mmx16mm heatsink. They are 12V units and at 12V they take 1.3A! That is 16W - and they get very hot. Don't be tempted to power them without a heetsink. With all 4 combined I used a 0.22Ω resistor in series with them to reduce the power. Soldering them was the easy part. Images below.
Edit, for the curious, they were for an indoor herb garden which I managed to kill.
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Notice that he isn't using the same LEDs that you linked to? His aren't ball mount but have a wire connection to power them.Thank you. Connecting them parallel and using 12 V power source is a nice idea. Now, I am planning to buy :
* Power source: 220V to 12 V adaptor
* 10 pieces of 10 watts 6-7 V 840-1000mA 660 nm LEDs(Will be connected parallel)
* 12v 0.39A fan (Will be connected serial)
How many resistors do I need to drop power? Will it work?
Sorry for my bad electronics.
Thanks what is the ball type of connection? Isn't it a classic type of soldering connection? Also, I changed my design I am using the constant current LED driver to give the correct current.Notice that he isn't using the same LEDs that you linked to? His aren't ball mount but have a wire connection to power them.
Thank you. I will look for other solderable LEDs.
I have asked the seller he told me that "No. It is not a ball. Usually, the led chip connected by cable." Also, I have looked at the other seller's product, they all have a ball type specification. I am thinking about to buy what do you think about that? Thanks.
My daughter lives in the Netherlands, where 'other herbs' are legal - and when her boyfriend (now husband) was over here a couple of years ago he was intrigued by us giving our cats 'cat nip' - which is 'other herbs' for cats. He offered to grow us some, and bring it over next time he came - we declined, and pointed out the difficulties of taking such foliage through Schiphol airport, never mind turning up at a UK airport arriving from Schiphol carrying suspicious looking plants!this one time i was at a customers home and in his room was a "other"herb .. he was growing in a small Styrofoam cup and using a 60watt regular incandescent bulb about 3ft from the shelf ... the poor plant was soo tall , about that, 3ft, but it only had 4 leaves, and 2 of them were pressed against the bulb starving for light
No penalty for 'cat nip', but fairly serious ones for cannabis.smarter to just gro your own ... what are the penalties for uk?