I’ve been growing in a 3x3 Gorilla w/ext. two HLG 100 4K, veg and one 260w V1 3K, veg/flower. And these lights have been great! Got to thinking I should go ahead and upgrade the panels on the 260w to Rspec. Sure enough panels on sale. I call to order. HLG tells me send the unit in and we will upgrade it all for shipping cost. So I asked if I could do it myself, sure we will send you the parts and send us the boards and driver back. They give me a 10% code and I order a 260w Rpsec kit with the same slate as my current old 260w. Coverage will be perfect now and dial them back and enjoy the sunshine. Impressed with HLG!
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Have nothing but good things to say about hlg! Great company, good customer service, and overall great products for reasonable prices!! Wish I had a fatter checking account to upgrade to the Diablo s
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HLG makes quality lights and I believe are the standard by which other lights should be judged.
Welcome to the forum! This is by far the friendliest most inclusive forum on growing that you will find.
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Welcome to the community!
Love my HLG light, I am also thinking about upgrading. Guess I will reach out to them first.
Welcome buddy, can’t go wrong with hlg. I have 2 builds and considering a 3rd 
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HLG will 100% be my next light just from the wealth of information about them on this forum
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Wow, I knew they had good customer service but that’s insane.
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Great lights. I love the modular design for upgrades.
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Hey @Blastfact welcome to the community. HLG has been great with me too, i have a 2x4 closet, can stretch to 2x6. First i had two burples and i upgraded with 2 hlg 100 v2 3000k off ebay. Then i desided to ask HLG if they would sell me just 2 hlg 100 v2 4000k boards, heck yes!!! Now i can swap drivers and run two 4k veg boards, or 2 3k flowering boards. Last grow i did 3 plants and wanted to run 3 lights, but only have 2 drivers. So i called HLG again and asked if i could buy a spare driver and a hanger kit and they sold me the driver and gave me the extra hanger, and never charged postage. I am blown away with them, love the fact you can call them and they help. Im so glad you had great experience also 
Happy growing
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Model number should be on top of driver, i believe its something like owa-90-36u. You can order these from several places if you want, or no reason not to use hlg.
Every time someone wants to argue that they’re getting “same thing for cheaper” should be directed to this topic.
I rest my case.
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I don’t know jack about HLG. Welcome to the forum, pull up a chair and sit a spell.
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Happy growing! You got this!