Tag Archives: quantum board

DIY 130 W LED light Feat. The crescience FLUxEngine

Video with build instructions

This article will cover how to build a solderless LED light thats scalable and very easy to set up. Check out why LEDs are superior.

The build shown here is beginner friendly. You dont have to drill into metal and the boards do not need active or passive cooling, since the framing will be sufficient to do that. If youre more into COBs, check out my 310W COB growlight guide!

This article will cover how to build a solderless LED light thats scalable and very easy to set up. Read more about how LEDs are superior.

Disclaimer: This piece of electronic is a potential fire hazard and should only be put together by electricians or persons with similar know-how. Please refrain from putting in self-made electronics into the wallplug. Dont die!

Itemlist

For this build you can either buy the whole kit from the LED builders website, or you look for a bunch of groove profiles from metal dealer thats suitable for you. Mind that I cant give an amazon link for that, since the orders are most likely to be custom made.

Groove Profile – use these, so you dont have to drill into metal!

I used 30 cm and 38 cm long profiles with a 4cmx4cm crosssection, so you can build a square-shape out of it.

You also need a bunch of metal sliders. Make sure, that the sliders fit the profiles.

Metal sliders that are needed as holes for the screws.

Every slider needs a fitting screw aswell. To connect the framepieces You will also need some angles. There has to be one on the side where you will buy the framing that fits the profile. It should look somewhat like that:

Angle connector for the frame.

For this particular build I used 4 FLUXengines to achieve a total power of 130 W for the 2×2 tent its used in. Be aware, that these boards might require screws with a smaller head, so you dont drill onto the LED modules.

FLUXengine with the power connector in the front and the Samsung lm301b chips on board.

The ELG-150-24A driver is the connection between the wallplug and the boards. You will need one of these. The boards are connected in parallel.

The driver!

You will also need about 50 cm to 1 m of single core copper cables to connect every board with the driver. I suggest you buy two different colors: one for plus, and one for minus. The cross-section of the wire should be between 0.14 mm² and 0.5 mm². Mind that once you used 0.5mm² cables on the connectors, you will not be able to switcht to the smaller ones.

Single core copper cables are easy to clamp!

For further connections and cable collection you will also need to buy WAGO clamps. Two 5-way clamps to connect all the boards in parallel to the driver, and three 2-ways to connect the driver to plug cable for the wall.

Wago Clamps for cable connection.

Last but not least its important to hang the lights from the top of the tent. Get four hook screws in order to do that.

Use these to hang your light!

Take some measurements first

Lay down your frames in front of you and put the boards on top in a symmetrical way. After that you estimate the cable lengths and cut them. Strip the isolation and connect the cables color-coded to + and to the boards and guide them throught the aluminum profiles. Its better to take longer cut here, hust to be save.

After that you take your metal sliders and also guide them through the profiles. You can now screw the boards tightly to the to the frames, and the framepieces to each other. Before you screw together the frame pieces, make sure to have all sliders in the back installed aswell. You wont be able to access the shorter parts anymore or you have to unscrew everything…

Connecting the cables

The schematic shows how its done. Collect all minus and plus cables together and put them into a 5-way WAGO clamp each. The voltage delivered by the driver stays constant while the current gets forced to a maximum output of about 6.3 A.

All cables are connected, the light is hanging safely – time to grow!

Testing and mounting

Four Crescience FLUXengine modules haning in the tent

When everything is connected nice and tight, you can now plug it in and look if it runs. Dont look directly into the light.

Done! This light should draw around 130 W at the wall and is able to light up a 60cm x 60cm grow tent (2’x2′).

Scale up!

The four modules can also be connected to a bigger drivers. Each module is able to put out 60W of light, so if you have the ability to hold down temps, you can also use ELG 240-42 running at 5710 mA to reach about 230 W with this setup. Mind that these chips run hotter and less efficient in this configuration, but will still crush any blurple or HPS lights in comparison.

Quantum Board grow tent: 80 cm x 80 cm

This build is adressed to new growers from the EU with corresponding product links. Start your grow today.

Complete build to grow cannabis at home
Full build of the 80 cm x 80 cm grow tent with 25l pots.

Everything you need to harvest  ~10 oz. of dry material every 3-4 months!
I will list the items that are absolute mandatory to grow first. There is a list with additional items, that I deem useful below. Get started on your first grow tent!

General Assumptions regarding your grow

  • Your grow medium of choice is soil.
  • You grow in a grow tent.
  • You start from seed.
  • You are a grow enthusiast who wants to make the most of a given space.
  • You do not have to run this hobby on a budget. (Options for that below)

List of items

TypeItemQty.PriceLink
grow tent3×3 Grow Tent154,95 €amazon
light*260W HLG QB1319,00 €todogrowled
pots19 l smart pots433,96 €amazon
soil*100 l Light Mix128,70 €amazon
nutrition*Trypack113,68 €amazon
ventilationClip Fans1-230,96 €amazon
filtersystem*
ACF+fan+tube194,90 €growmart
clima controlTemp./Hum. Monitor18,95 €amazon
on/off switchProgammable timer112,85 €amazon


Tot.597,95 €

The light – Quantum Board LEDs

The top notch grow LED technology. The set from HLG comes with every part you need tohook up your light. Check out the build instructions from LED gardener how to do this. 

Parts to build a QB LED light
Driver, cables, wago connectors – everything is prepacked in this DIY kit.

The set is particulary inexpensive for the power you get: 260 W of one of the most efficient lights out there. The board has the famous Samsung LM301b chip on the boards. With the driver running at 100% you can expect up to 2.61 µmol/J and over 170 lm/W. You can even ramp that up with two of the kits running both at 200 W. Read more on LED tech in the theory section.

The kit also comes with predrilles heatsinks to passively cool down the boards. This is possible since there are numerous chips far apart from each other on the board, so heat dissipation is easier. One more advantage: Light is distributed much more evenly across the canopy area. In my opnion (11.2018) Quantum Boards are the single best technology for homegrowers right now and HLG are on top of the game.

Soil and Nutrition

This is an optional choice but I had very good results with the products from BioBizz before. You can also choose an alternative like Kanamu Pacha, Canna or Plagron. Read carefully the nutrition and soil usage instruction. Overfeeding is one of the biggest problems for new growers.

The Filtersystem

Air circulation is key to have optimal temperatures inside your grow tent. Room temperature between 19°C and 22°C are very much optimal for a grow room. The light, no matter if LED or HPS, will create dissipative heat through the process of creating light and of course the photon output. Its necessary to get this air exchanged at least once every five minutes. A good fan will do this easily. Remember that the use of an active carbon filter will reduce the overall power of a fan, so you need to consider that when planning a grow room.

Active coal filter and fan combo
Air gets sucked through the active coal unit out of the tent. 

Do you need active intake? Not necessarily. A powerful fan will create negative pressure inside the the tent and air gets sucked through the gaps of the tent inside. Thats more than enough for a homegrower.

Additional Items

Model builders syringes

It can be hard to get the right amount of nutrients out of the bottles. Use syringes to get it right.

Watering can

I mean, a simple container that can hold 5-10 l of fluid will work, but a normal watering can will ease up the process significantly.

pH test kits

Tap water is oftentimes not suitable for watering cannabis in an optimal fashion. Try to keep track of the tapwateres pH levels and change it accordingly. The pH for soil grows can be buffered through the grow medium itself, but it is helping alot if you can dial it in before putting it in.

pH levels for soil grows should be between 6.0 and 6.5.

Sharp gardening scissors

Keep your stuff clean and only use it for plants. This prevents infections and pests from entering you grow area.