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https://led.cdiweb.com/ProductDetail/PG100N-UPRtek/618263/ Not a cheap toy, but looks like a nice hand held meter. I also got word there is a new BEAST in town. I am ordering a tray today, but might not see them until mid-end of April. Citizen is coming out with a CLU059 3618. Max temp at both...

I am finally ready to get either a higher end PAR meter or a lower end spectrometer. I have a few models that I have been looking at, but if I have past up any, please post links. Or better pricing. First choice for a PAR meter is the LI-250A Light Meter, LI-190R-BNC-2 Quantum Sensor ($1200)...

Looks like Cree is finally stepping things up. There diodes have been looking impressive, but not worth the work, but now, more options. Cree Performance XHP50.2 LED Module The Cree performance modules are an off-the-shelf platform to rapidly move from prototype to finished LED lighting...

I figured I would put this here instead of hiding it in the LED section. The room is normally a 4 DE HPS room with 2 4'x8' trays. The plants will get a couple days to get use to the lights and should be flowering by the weekend. I don't have a PAR meter, but do have a lux meter that I will use...

I have been doing a lot of searching in the computer component sector and for all kinds of cheap and expensive controllers. I picked up a Kingwin FPX-002 for about $20. It can monitor and control 3 sets of fans. The temp. sensor looks like it is thin enough to fit under the corner of the COB...

I was wonder if anybody saw this stuff last night? Do you think it would work in our gardens? They talked about it being completely safe. I might call on Monday to ask if this could be a horticulture option.

I am looking at a few ways to make my light safer, but have had trouble finding what I am looking for. I have found some cool power inlets and other odds and ends. My problem is with the universal input, how do I fuse this at 15 amps, so I feel more comfortable daisy chaining these at 110v or...

Ok, I got tired of chasing my old threads, so I am combining all my test lights in on thread. I am now using 2 and 3 gallon Smartpots with Readygro Coco. I am using Cutting edge nutes, drain to waste with rain water. I have multiple strains, some flipped quick on shelves and others that are...

I need questions. I am meeting with them in one hour. I am buying 4 600 WATTER. What type of data do you guys need about these. Buy got to run.

I understand that the manufacturer might not recommend it, but we are not building lights like the commercial industry. Most every light I have looked into are running near max with good chips that are ran just barely above old lighting standards ( less than 100 lumen per watt). If they have a...

I had bought 4 200 watt outdoor floodlights that were bridgelux dies in COB form @ 200 watts. They used meanwell cen-100-36 for 2 COB's. I finally bought 10 Vero 29's to replace the older COB's and widen where they were mounted to the heat sink. The drivers are moved from inside the case to the...

Been talking to a US company, Redbird Led. They make high bay lights and troffer retrofit LED kits. They have one that is 155 lumen per watt. We just received a couple samples to play with at Emerald City Gardens. They sent us 2 of there 22 watt 2 foot strips. It comes with 2 heavy duty (for 22...

I am looking to have another light made, similar to spectrum king. The one I have right now is doing very well, but is using 288 XBD's to get 494 watts. The data sheet shows that they produce 309 lumens @ 3w. The heatsink can only cool 500 watts @ 85c (from what I was told). I have been looking...

I've spent the last couple months with China (Semlights) and have finally received my sample order of 4 200 watt, multi temp, floodlights. DHL fucked up my packages. These lights are 40 pounds each and they bent 3 of the brackets and cause a loose wire. The one with the most damage has a flicker...

I am in the market for more led power, one way or another. I started with the magnumplus, then add the magnumplus2, and now was able to use the Sol9 900 watt panel. The mag+ is over 3 years old with continues use ( they quickly sent me new 2 new power supplies when needed), the mag+2 was rebuilt...

The room- 5'x 10'x 9' with fully insulated walls. Running small CO2 burner with fuzzylogic controller. The temps are controlled with a small intake fan and a larger exhaust fan attached to a carbon filter. The lights are the new Sol 9 (900 true wattage) and a Magnum plus2, that has been rebuilt...

I've been a loyal magnum customer with great results (1 GPW), but I have a chance to retire my magplus from flowering and have it strictly for vegging. So now I'm sure I am moving up to 800+ watts. Luckily this upgrade will not cost me personally a penny. So, I have been stuck on either the new...

I was just wondering if anyone has ran just the blue or cool white during the first week of flowering, to limit stretch? Would it affect how quick the buds show?

For those that are in a tent and venting in the room or garage, you can use a tabletop hepa filter. I started growing indoors in a 4x4 tent with leds. Since I knew my air demand wasn't as much as with HPS, I found (my wife:mrgreen:) this air purifier for $5 at a garage sale. The filter was like...

First off, I'm the type of person that has a hard time leaving things alone. I always see a way to make things better. I am still new to indoor growing and have only been indoors with leds for 2 and a half. First year was plagues with pest and powdermold. A friend told me to try more but less...