So when i decided to grow i started with a 400W hps and MH conversion bulb. I put up my tent and it was problem after problem. With the generous help from the people here i decided to throw away my setup and start from scratch. I purchased the Quantum Badboy 8 lamp T5. I started with the standard 6500k bulbs with some success. I wanted to buy an LED light but didnt have the money. So... i was at my buddies house and he has a LARGE aquarium and he showed me his bulbs..it clicked.. corals need light too and his lights produced the EXACT spectrum corals need to live and are capable of penetrating 3'+ of water. well corals and plants are very similar as they use the EXACT same light spectrum. Digging deeper i found bulbs that produce 410-460nm and 620-660 nm light.. That is also Exactly what LEDs put out..now putting one plus one together i decided to do a small test.. i bought 2 2' t5 lights ATI AND UVL Blue plus and Super Actinic. Explosive growth followed. i couldent believe my eyes. I was told on 4 different forums that actinic bulbs DO NOT WORK FOR plants boy were they really wrong!. i ahve since gone 100% T5 with various bulbs producing only yhe light spectrum that plants need. As you can see my plants are doing AMAZING for being grown with Actinic bulbs.2 of my bulbs are missing as they were broken upon arrrival. I will be changing out some of the blue bulbs with the deep red ones i found for flowering..they produce ONLY 630-660nm light. no other spectrum so i get 100% PAR. top that with MH...now i know what your thinking these lights are not bright at all... well its not about lumens.the human eye response isphotosynthetic is , so your eyes do not see ALL the light these bulbs output. hardcore believers will flame me but let the math and the facts be known.HPS BULBS View attachment 1101469 Anyone notice a pattern here???? Lumens are not the ending factor to bud growth or you could not grow with LED. my sample grow i netted 1oz on a plant with only 116w. If your still in disbelief consider this, chect the spectrum charts for your coveted 3000k bulbs and overlay it with your chlorophyll response charts.. youll notice MOST of the light these bulbs prodice is outside the chloraphyll A+B peaks... now place the spectrums of my lights and overlay them...100% match.. seems to me im doing something right?