General Guide

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  • Power Cord
  • Cable Joiner
  • Hangers
  • Wago
  • Solid Hook-Up Wire - 18-22 AWG - Solid (recommended) NTE Direct

Thermal Interface Material

TIM such as paste and pads are Not Required for all Quantum Boards except QB 96 Elite

Recommended Screw Type

Pan head, button head, round head, and truss head screws work fine.  Flat head and oval headscrews or other screws with an angled surface should not be used.

Screws for QB

If you use a washer, confirm that the washer does not have any contact with any electrical test points as highlighted in the red circles shown in the image below. This is to ensure there is no short circuit failure.

QB 288


Thermal Runaway in Parallel wired boards

As temps go up the Vf of diodes go down. When Vf does down the diode is able to pull more current. This can cause thermal runnaway in parallel boards circuits if 1 or more boards fail or get disconnected.

How to avoid Runaway:

1) Use a Mean Well Type A driver if you wire boards in parallel. Type A driver 54V or under have a Vf adjustment on driver. You can fine tune to limit the voltage. A voltage set at 53V or 53.5V instead of 54V can help avoid runaway.
2) A good thermal design can help. Use of a Heatsink can keep the board cool an ensure the voltage of diodes do not go down too much, if temperature goes up.
3) Use a fuse for each board or thermal cutoff switch.

Acrylic Sheet Cover

Acrylic Sheet can be installed to cover the QB Board. Lamp will run a few degrees warmer.  New Slate 2 series comes with M3 mounting points to install an Acrylic Sheet. Tested with 0.08 in Clear Acrylic Sheet installed on Slate 2 double with 2x QB running at 250Watts. This Acrylic Sheet was cut with plastic cutting knife.

Acrylic Sheet on LED

Top: Without Acrylic sheet. Bottom With Acrylic Sheet installed.QB Thermal Test

Board Connector

Board uses Molex Lite-Trap connector 104188-0110 rated max 300V AC (RMS)/DC and 9A with 18 AWG wire.18-24 AWG Solid (recommended) or 20-22 AWG Strand Wire.


Product Specification

Molex Lite Trap



Wago Connector

Wago Assortment on Amazon