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mylar is not more effective than mirrors (just more practical)

the 133mm heatsinks i sell are drilled to accept 4 cobs in holders. ive run as high as 150W per heatsink with a tiny 12V fan on top

these rock face for clone trays

measure the voltage and compare to datasheet temp droop

no i think he means your heatsink is being a "heat sink"

its an illusion. as soon as you cut the power all the residual heat in the tiny chip gets sucked into the massive heatsink.

well hps wasnt used for its superior color, it was the only decent lamp in the 150 lumen/W range. LPS was at least as good but spectrum was too out of whack and if you recall all the "son agro" lamps and others that were attempting to add more blue to HPS

"problem"? how much more efficient than HID would you like them to be? science all day bro. diode voltage is no more limiting than electrochemical voltage in batteries. you start your car everyday on 2V lead acid cells and run your laptop all day on 3.7V li-ion cells. the largest solar arrays...

so you dont understand umol/J, then? "my lights"? im sure they do. probably 1000 HPS out there for every rig ive ever sold thats a fact. with quality LEDs. same yield or less with shitty LEDs like the OP talks about work on your reading comprehension please ?? link? not sure what youre...

not the worst for sure. one of the best of the fancy fixtures and on par with the best of the grassroots stuff. if he understands the relevance of their 2.0 umol/J or whatever thats a benchmark he can use to be a smart shopper no shade on fluence but there are cheaper options at the same...

hey @Diesel0889 that quote went all sideways your fluence will crush it btw. excellent example of a company with real specs behind their products

possible most iec power cords are 16GA anyway if you think of the fixtures that use them they are not power hogs

the fuse should not be higher than the rating of the socket itself a 15A fuse is completely redundant if the circuit breaker that feeds it is also 15A fuses/circuit breakers are most commonly rated to protect the wiring between the breaker and the recepticle some general rules of thumb 10GA...

i would call 10A 'light duty' and 20-30A 'heavy duty/commercial' heck a plug in domestic wall electric heater/hair dryer/toaster/coffeemaker all pull more than 10A. which is why most wall sockets are rated for 15A minimum and NEC requires multiple 20A small appliance circuits in new construction

light quantity and quality are two different things. once you decide on the spectrum you need, light quantity can be quantified and adjusted. unless you are really looking to photoinhibit with blue its not super critical which is why 2700k-4000k isnt all that different to plants if you are...

just take the current draw as printed on the drivers at 230 and multiply by 1.5 for a starting point. as RB said you might need slow blow fuses. you'll prob end up at 3,4,5, or 7A

it actually doesnt. the top of the line chips which are better than both of the options i described above are still well under $60. and any of the three are an improvement over HPS when applied correctly right now. this was a giant leap in efficacy. in the past you were relegated to...

ill leave it to you to provide even one example. heres mine: just 3 years ago people were paying $60 for cree cobs which you can get the same level of performance today for $10 prices have been falling and continue to. "no tech left to exploit" sounds like something you literally made up, but...

depends 100% on the amperage you are putting thru it and nothing else. all of those fuses are rated for 250V minimum take your standard operating amperage and bump it as little as possible above that. im gonna guess 3-5A if your fixture is 230V but thats just a stab in the dark without knowing...

imma guess not good contact between spring arm on the ideals and the chips. perhaps chips arent fully clipped into the ideals? look carefully from the top. the ideals are kind of "springy" in that the chip often doesnt make good contact until the screws are fully torqued, sometimes due to that...