here are some pics of my last scrog a year or so ago, first shot is clones getting ready and the last is under the canopy the screen was a 4x5 with two 400 and two flouros with reptile lights for a total of 870 watts, the 400 were on rails traveling 3ft each and the flouros were ran between the rails, as far as if reptile lights are effective i would say definately yes on this particular strain master kush x bubba kush you could clearly see more trichome development on the middle plants directly under the reptile lights very frosty however potentcy did not seem to change much. the room was completly sealed and kept around 85 F with supplemental co2 around 1600ppm, the plants were grown in 5 gallon bags with 3 gallons of coco, on a plastic sheet made into a tray with two layers of capillary matting connecting all the plants water together, feed was dutch master gold with several different additives and botanicare sweet for carbs, this was set up on a timer to run twice a day until there was run off, the runoff stayed in the tray and with the capillary matting was evenly reabsorbed back into the plants. there was also a very aggresive foliar feed program with dutch master penetrator, liquid light, max-fx, and folitech, two weeks into flower one treatment of phosphoad followed by two flushings. the screen frame was just made of 2x2 pieces of wood and 2x4's at the base and 1.5" plastic chicken wire screen stretched and stapled onto the frame the frame was setup 12 inches from the top of the grow bags and 18" from the ground, this grow room was in an attic so head space was very limited, so using a screen and rails both helped to condense the setup to not overgrow. at harvest i simply cut the stems and cutout 1sqft sections of screen and manicured it piece by piece. all in all the yield was 39oz dry ( 30 dry oz of quality flower 9 oz of popcorn buds ) and 4 marbles of bubble hash