I've a 42x60 pole barn I've just wired up with 24 of these - 105 square feet per light. That's a little more dense than I've seen others install them, but eyes are aging and I'd not seen any reports of them up high. I've got them mounted to the bottom of trusses at just under 15'.
Yes...it's nice to have a buddy with rolling scaffolding.
Excellent light, even at this height. I was initially planning on going T5/T8 given my perceived cost of LED, but at $40/unit this was a no-brainer. At 912W for the entire building, I didn't even bother splitting them up - just plugged all into one circuit with 3-way switches at each entrance.
No real control over cell phone camera settings, so pics and videos don't really tell the whole story - but here's a quick YouTube video in addition to the pic below.
Take your receipt back to Costco and see if they will refund the difference in the sale price. They used to do this if sale was within 30 days of your purchase. Haven't tested this policy in years though. If they won't, buy new ones on sale and return old full price ones - that's kind of a pain tho.
I can't help with the rest of your question, but about the "coupon" Costco discontinued that a while ago. It's more like an advertisement flyer now, with all members automatically getting the discount regardless of whether or not you present the flyer at the checkout.
I can't help with the rest of your question, but about the "coupon" Costco discontinued that a while ago. It's more like an advertisement flyer now, with all members automatically getting the discount regardless of whether or not you present the flyer at the checkout.
Sweet deal, thanks for the heads up. 