Below is a picture of a light in the back of a customer's house. It shines down on their backyard. I am not sure of the wattage or anything else since it's up above the lower level roof.
They are happy with the light output, but the cover blew off and the bulbs were a pain to change since it's high up. So they would like me to replace it with an LED that will give the same output.
This is where I need your help, what size light should I get to match the output? I would appreciate any suggestions for the LED light itself, thanks.
I've used a bunch of the econolight mini floods and they're great for the price.
I have at least 3 dozen in operation at an apt complex and as far as I know not a single failure
I'm still not wrapping my head around this. The 30watt 1900 lumen LED's that I have installed seem like they are at least the same output as a 300watt quartz light. Yet the 76watt lights linked to above say they are equivalent to 200watt lights.
Lumen depreciation and dirt depreciation will significantly affect the performance of a fixture over time.
It's tough to compare maintained lumens, LED vs. incandescent or HID, because they haven't figured out a formula for LED. The 76W vs. 200W comparison is probably accurate based on initial lumens.
I'll let you know how they work. 27 years at 10 hours a day. Replace a 150 watt Metal Halide
They steer these LEDs now days... 'The new 18 Watt LPACK is designed with next generation LED chips and phosphor, precision engineered optics and super high efficiency driver.'
This fixture is 103 lumens per watt. They are comparing it to another fixture at 65 lumens per watt. This is why you have to compare lumens, not watts. LED's are confusing.
I'm thinking it will be fine. You're not going to hang the 11,000 lumen battleship just to match the quartz. You're replacing a cheap piece of crap somebody bought at the hardware store.
At least Cooper gives you a little bit of photometry and your Allpro fixture gives you pretty good spread at 5 foot-candles, which is perfectly acceptable for outdoor lighting.
I know I am late chiming in here-
I replaced 2- 300w halogen flood lights with the FFLED18 5000k Rab fixtures. They are in the front lawn and light up the front of the house. They then had me replace a few wall mounted with the same lights because they liked them so much.
I love RAB's products. They are expensive, but quality always is. 10 year 100000 hr warranty, who can beat that!
I have the small round econlight floods at my own house.
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