It’s always a trade with things like that, it does seem like the Benefit outweighs the detractors. Increase airflow is the only option then huh?I removed 80% of diffuses so the heat can escape, but it's going to be a little warmer than not having the reflector.
but the extra lums is worth it.
been working on a budget led with a high airflow, this reflector is really going to help.
So, are you wiring in independent fans in proximity to the heat sink then? If so what size fan?Looking at the bulb, the outer case upto the start of diffuses is some kind of coated aluminum (heatsink), this is where all the heat is exchanged, I don't think you want airflow over the led chip as this could damage the led.
lots of forced air on the heatsink, should keep the led very cool.
Oh sweet, it’s kinda what I thought fan size wise. What size is your driver? Watts/voltage wise? Or have you not gotten that far…8 bulbs making a 1ft square, the center will be raised about 60mm with a 110 hole in the center(120mm server fan)
this will pull air pass the bulb heatsink/bulb holder and directly down to the canopy.
I know for a fact this will be quality and last longer and cheaper than paying shipping/handling for a big name light and it’s fun as hell to do this kinda stuff8 bulbs making a 1ft square, the center will be raised about 60mm with a 110 hole in the center(120mm server fan)
this will pull air pass the bulb heatsink/bulb holder and directly down to the canopy.
The bulbs include the drivers, its fully designed and I hope to buy some parts tomorrow, few of my mates are on my back, they want there lights lolOh sweet, it’s kinda what I thought fan size wise. What size is your driver? Watts/voltage wise? Or have you not gotten that far…
Its all good fun and your rightI know for a fact this will be quality and last longer and cheaper than paying shipping/handling for a big name light and it’s fun as hell to do this kinda stuff
That is the most important point regarding LEDs - I also built my own lights for under $100!Spot on, they want you to buy light bulbs every 2 years.
TBH most grow light need to last 2-3 years, if they run too efficient, they will last 10 years
View attachment 1996486
Quick example off google
A grow light lasting 160,000 hours would be a big problem if I wanted to sell x amount per year
I have looked at these cobs a few times on ebay, migro video put me off, but pulling less watt per cob makes a lot of sense.That is the most important point regarding LEDs - I also built my own lights for under $100!
Got these four large heat sinks from frustrated BTC miners last year that gave up when crypto tanked -$5 per piece. 36 50W COBs, 20 of them 4000k white, 10 warm white and 6 blurple.
Here's the trick- I totally under run them at just 250mA@33Vf , so just over 8Watts per "50W" COB. These will last 'forever'. I left a square hole in the middle for some airflow and to reduce the center brightness. Two 14cm 12V fans run silently at 5V USB power lay on top and in winter I direct the airflow down towards the plants. The COBs were just under a $1/piece on AliExpress. The LED drivers allow me to dim each strip of 5 COBs separately via remote. They cost about $10 each on AliEx. With all on max it pulls about 300Watts from the wall and is about 10.000 Lux brighter (@same distance) than my friends' 250W Amazon light. Under-running LEDs not only makes them live longer but also makes them more efficient (lm/w)
is it pretty? no
is it safe? no, the metal parts are grounded tho
but it is very functional!
What about 2 washing line Pulley, cheap easy and they should support upto 15kgThat's exactly what I do for my regular home lighting LEDs - I buy a bit higher wattage (say 9W) LED lamp and then snap of
one of the current-sense resistors so they run at less than half the power. None of these "hacked" lamps have failed yet.
This will also lower the overall temps in the bulb and will certainly help the lifespan of the "death" cap.
The weight is about 5kg, still quite heavy, you are right.
Re: height adjustments I plan to buy one of these bike lifts for that..meanwhile I use stacked boxes to adjust the height by moving plant up or down.
Well, I would think that if you made a sort of Mercedes of LEDs that did last 20 yrs, yeah, you may not get ppl to buy new ones every 3 years, but you would get a heck of a lot of people to change to buying your far better light. And, you wouldn't have to wait 20yrs to get repeat buys because it's still evolving/improving technology and people will want to buy a new one after maybe 8 years. By the time you sell a heck of a lot of lights, here comes repeat business. Or, maybe you add a service where every 5 yrs people turn the light in to you and you improve it, and send it back to them.Your are correct "they're chips? Printed circuits?"
If I made grow lights and they lasted 20 years, I would never sell you any more grow lights, if they last 3 years, I could sell you 6 lights in 18 years.
You could buy 2 grow lights and dim them 50% and they would last a very long time.
Touch the led after it has been on for 1 hour is it hot or really hot.
The cooler it is the longer it will last.
The Telos grow light look a very high quality led, built to last, just under £500(300w).
I would need 3 of these so I can dim them down to 70%(630w) for a 2,4 m x 1.2m room
Just too much money IMO,
View attachment 1996524
Are you hanging in your grow tent? You do turn the lights off......?Just pulled the older crop
View attachment 1998603
down, took 4 hours, happy with the crop size, took a video so you can what I can pull with a few bulbs( I pulled the bulbs apart and stuck them on aluminium).
I am happy with the results.
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