Kinda does, doesn't it?So whats your early opinion, how do they compare? From the pics it looks like the HPS has outproduced the LED by a fair margin.
So whats your early opinion, how do they compare? From the pics it looks like the HPS has outproduced the LED by a fair margin.
I could be wrong but it looks like all the plants under the hps are leaning toward the cob's??
which side do the plants that are right between that are getitng equal light from both fixtures go? seems like the hps would win handily because its covering about twice the area
I've never read this (which may mean I'm uneducated lol). Why is this?In the next test run do them in separate environments simply because if you had the temps in line for HPS you are too cold for the LED side. Optimum temp for LED is 5-6° F warmer than HPS.
HID follows this basic rule. If you pump 1000 watts into an HID bulb 1000 watts of energy is coming out. In SE HPS case around 32-33% comes out as visible light or PAR(Photosynthetic Active Radiation) light. The rest comes out above 800 nm which isn't depicted in the spectrum graph on the box. This 800+nm "light" is actually infrared heat(same as comes out of most small electric radiant heaters). Led on the other hand is different. If you put 50 watts into a COB you get 25 watts of usable light and 25 watts of heat (just an example). The difference is the type of heat. The LED's waste heat is expelled off the back of the led into the heat sink where it is dissipated into the air. It doesn't have the heat soaking effect that HID has. So basically it's Radiant heat vs Compounding Conductive Heat.I've never read this (which may mean I'm uneducated lol). Why is this?
Wouldn't that be dependent on total radiant watts and the coverage area?Optimum temp for LED is 5-6° F warmer than HPS.