Recent content by Kelby

I wanted to post my experience upgrading my garage door to better control shop temp. I live in So Cal. I have a West-facing garage door on my 3-car garage, which I have converted to a woodshop. When I bought the home 8 years ago, the garage temps got brutal in the summer. I like it around 70...

CMillet86, thanks for sharing your experience. That seems consistent with my math and my thermal image. I'm hoping to get the same kind of results in terms of the A/C not having to work as hard. Right now, it's struggling to keep up on hot days with all the heat coming from outside and from...

Thanks, ForceFed70. I'm curious: Why did you include a 15% ballast loss for the LED, but not for the T8? Doesn't the ballast chew up an equal amount of power regardless of whether it's hooked up to an LED or T8?

Thanks. I'm using a Sylvania OSRAM 12W bulb, 4.1k temp. I don't know how reputable Sylvania is, but here's the data sheet. https://assets.sylvania.com/assets/Documents/LED465.d4a378b6-879b-4ff9-b2a0-0a89b472b554.pdf

Jim, Great stuff! Thanks! On your last point, that's a good point. Of course, all light ultimately ends up turning into heat. (Eg., the light hits the black case on my cordless drill and warms the case rather than being reflected to some other portion of the shop.) So it's all heat in the...

Respectfully, you're going to have to explain that, because it doesn't seem consistent with the math or with my practical experience. What experience is that? Well, I have a four-lamp T8 fluorescent fixture in which one of my fluorescent bulbs burnt out this weekend. I just replaced it with...

Great to hear! Thank you!

Longtime lurker here. I'm interested in trying to cool down my shop by reducing the heat from my lighting. I have some questions. Background: I live in Southern California, and I have converted my three-car garage into a woodshop. The shop stays too warm all year. I have insulated the...