On Friday, October 16, 2020 at 9:51:42 PM UTC-5, wrote:
On Fri, 16 Oct 2020 13:24:06 -0700 (PDT), "
wrote:

On Friday, October 16, 2020 at 9:35:43 AM UTC-5, Scott Lurndal wrote:
whit3rd writes:
On Thursday, October 15, 2020 at 2:13:48 PM UTC-7, wrote:
I just use 4 foot fluorescent lights in my shop area. I have 37 of the two bulb 4 foot fixtures in the basement. Once in a great while the fluorescent bulbs die. But its rare. And the bulbs cost $1 each or something like that.

Yep, fluorescent is still a winner on parts/availability/maturity, and was never far
behind LED in power consumption.
I would argue that a 50% reduction in power consumption between fluorescent and
LED does indicate that fluorescent is "far behind LED in power consumption".

Well.... Yes and No. My electric bill last month was $36.55. I think it averages about that year round. Higher in the winter months and lower in the summer months due to lighting mainly. A 50% reduction would mean $18 per month for me. Yearly that would be $216. A nice amount. You could buy a new battery drill maybe. For me the main lights I use are the bathroom, kitchen (old light style), and living room (LED bulbs). Unfortunately the basement shop with the fluorescent wasteful lights are not used all that much each month. So they add $1 to the total bill. Or less. LED would save me 50 cents a month at most. It would take decades and decades to pay for LED in the basement. But if I replaced my kitchen and bathroom light bulbs with LED for $20-30-40, I could pay for them in three months or so. Savings, or reduction in power in this case, is important in the right circumstances. And unimportant in other places. The person who started this thread said he ran his new
LED light in the storage room a total of 5 hours in one year. Paying more than double the cost of the cheapo unit (his words) to save 50% power consumption might not make much sense if you only save 10 cents of power each year. Spend money or use technology where it matters. Not where its foolish to do so.

You're assuming that 100% of your power bill is lighting. That would
be quite unusual.

I assumed 100% lights for electricity usage to make the math easy and it also makes it more likely the LED pays for itself. My electric usage each month is lights, TV, computer, refrigerator, washer, dryer. Furnace blower in the winter. No AC usage. Lights are maybe half of electric usage. In the winter months my electricity usage goes up a lot. 437 kwh Jan 2020. 236 kwh Sep 2020. Refrigerator runs identical year round. Washer/dryer usage is same each month. TV and computer usage is same each month. Only thing that changes between Jan and Sep is lighting. And furnace blower. So lighting added 200 kwh for me during the winter. And I burned a lot of lights at night in Sep. So I think lights are the majority electric usage for me. They probably account for 50% of my total electric bill each month.