There is going to be enough light reflecting off the floor and other objects to light the whole room. Strongly considering cool white and deep red flood lights. 300 watt LED is a street light The plan is to build 2 or 4 of these lights. Shine these out the window and they will light the court yard like it is day.

Notes All prices are estimates. Bidding and other sources are recommended for actual purchase

• Lighting must be compact and easy to install onto a concrete ceiling.
  • light weight LED rgbw strip mounted on an aluminum LED strip and acrylic sheet holder.
  • drill the aluminum strip after to match the concrete drilled ceiling holes and attache the aluminum strip to the crown modeling when possible
  • hide the the power supplies inside the crown modeling
  • must be remote / electronic controlled
  • moisture test would be very nice too. Lets integrate it into the lighting control
  • light spectrum for photosynthesis is 400nm → 500nm violet, blue light and 650nm → 700nm deep red light
  • 
  • With typical RGB only BLUE (480nm) is photosynthetic efficient 624 nm, 540 nm, 480 nm
  • deep red and cyan grow LEDs 100W watts High Power SMD LED High Power Grow light
    • $15 100W 660nm 20V-22V 3500mA 5000LM
    • $40 100W 445nm 32V-34V 3500mA 3500LM
    • can use cool white for the blue light source. 100W Cool White High Power
    • $8.65 100W 32V-34V 3500mA 10000LM
  • white LED colour distribution cool white is by far the best choice if a white LED is used.
  • 
  • That's perfect thanks, the green LEDs are more beneficial for aesthetics than photosynthesis. choose between the 10000 planted and 6300k dutch
  • 
    • 12“ Board: (10) 5700K Cool White, (3) 660nm Deep Red, (2) 450nm Royal Blue
  • chosen solution is to create 300 watt led spot lights
    • 3 (2 cool white, 1 deep red) 10 Degree Cob lens mounted on cpu heat sinks, are conned inwards and shin throw a larger 107mm plano convex lens
    • cooling the 3 x 100 watt cob leds with 140mm case fan blowing air through the spot light can.
    • $29 USD low cost heatpipe greater than 100 watt cooling capacity
  • Sunlight approximately 98000 lux ( lumens per square meter)
  • CFL Watts are approximately equal to LED watts.
    • Minimum amount of lighting needed is around 2000 lumens per square foot.
      • (Two – 23 watt CFL’s, per square foot*)
    • Mid range is around 5000 lumens per square foot.
      • (Three – 23 watt CFL’s, per square foot*)
    • Optimal is 7000-7500, or higher, lumens per square foot.
      • (Five – 23 watt CFL’s, per square foot*)
    • Suggest 80000 lumens / m^2 approximately 1125 watt

Additional Notes LED Strips more expensive

• SMD LED module comparison SMD_LED_ICs
• Looking at heat / power efficiency another way SMD LED Lumen efficiency
• We have chosen to use an edge light acrylic. This requires us to use LED strip
  • cheapest are 4014 led bubs $4 for 35w LED_Bulb_5730-2835-4014SMD but these will not work
  • LED rgbw strip lighting
  • $28 5M for 28w meter = $28 for 140w 12V_rgbw_600-leds-Double-Row
    • calculated the lumens from the SMD LED module comparison
  • $53 5M for 18w meter = $53 for 90w SK6812-RGBW This also comes in neutral white. I like that a lot
    • $217 5M for 43w meter = $217 for 215w

Some thoughts

• Can we use 2 thin acrylic sheets conned together for the dual row led strips rather than one very thick acrylic sheet?
• Individually LED strips addressable is quite expensive. They will look cool but I don't think they are worth the expense for a grow light system.
• Cut 12V rgbw into shorter lengths and wire them every other 1 together or every other 2 together
  • We don't want too many 12V drivers.
  • Do we build our own 12V drivers or we buy them.
  • 12V pwm drivers or simple 12V supplies.