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20th April 2017, 02:22 AM #121GOLD MEMBER
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I put LED fixtures in my shop that I bought direct from China for the equivalent of $38Aus each. I found a company on Alibaba that had the certifications for Canada, the electrician can't legally install them without it. They were 4000 lumen, 6000k each and I put in more than Bob's number. 64,000 lumens in a 58.5 square meter shop (16 LEDs). If I had bought locally it would have cost me at least 2.5 times or more. Time from ordering to delivery was 3 weeks, 2 of which was for FedEx. Look into it and see if it make sense for your situation.
Pete
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20th April 2017 02:22 AM # ADSGoogle Adsense Advertisement
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20th April 2017, 02:34 AM #122
Pete you would not have a record of the company name on Alibaba?
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20th April 2017, 03:19 AM #123GOLD MEMBER
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Guangdong Lonyung LED Lighting Co., Ltd.
I bought 1200mm, T5 double tube lights. I would have preferred the Tri-Proof as they were more powerful but cost more money. Boss lady wouldn't approve.
Pete
I'll add that they come with mounting clips and short conection cords. If you want longer to space them out get them at the same time. Saves on paying for shipping again.
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20th April 2017, 09:32 AM #124.
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20th April 2017, 11:15 AM #125
Thanks Pete - found their website and made an enquiry about their LED Tri-Proof Light.LED Tri-proof Light----LONYUNG LED LIGHTING CO.,LTD,Led Integrated Tube Light,LED Tri-proof Light,High Bay Light
LY-SF90L1200-40W4ft/1200mm40WSMD2835216ocsPF>0.954000-5200lm>821365*260*220mm 6pcs/ctn
At a minimum of 4000 lumens each multiplied by 6 gives gives 24000 lumens in a (5 meters x 6 meters) 30 square meter workshop. With comes to 800 lumens a square meters.
At a maximum of 5200 lumens each multiplied by 6 gives gives 31200 lumens in a (5 meters x 6 meters) 30 square meter workshop. With comes to 1040 lumens a square meters.
Which exceeds Bobls guidance. BUT MY MATHS IS ABYSMAL.
Found this cool vid about how tuff these LED Tri-proof lighting are
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20th April 2017, 11:44 AM #126
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20th April 2017, 12:48 PM #127GOLD MEMBER
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Bob the ones I bought were these.
LY-T5SL1500-40W5ft/1500mm40WSMD2835240pcsPF>0.954400-5200lm>821645*210*180mm;16pcs/ctn
Darn rotated pics.
Pete
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20th April 2017, 01:58 PM #128
and when it comes to lighting, my maths is not much better.
Bob's 750 lumens / sq.m would typically be a minimum level of illumination, not an average. You might have 1000 lumens directly under a light, and 1 m above floor level, but 1 metre away, the light level could easily be less than 750 lumens.
you may like to have a play on this site Visual Interior Toolregards from Alberta, Canada
ian
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20th April 2017, 02:51 PM #129.
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20th April 2017, 03:04 PM #130GOLD MEMBER
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Now you know why I wanted the Tri-Proof lights. I'm very happy with mine and members of the turning and woodworking clubs I belong to ordered them after I took one to the meeting and plugged it in. Over 80 in the two groups. If you ask they will send you a copy of the certification document that you need in Australia. Your electrician buddy can tell you which standard they should be.
Pete
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20th April 2017, 03:13 PM #131GOLD MEMBER
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Sorry Bob. 16 fixtures. They call them doubles. In the pictures I showed, the fixture is about 1 1/2" or 40mm wide and a little less high. They are a one piece unit with no bulbs to change, just have 2 rows of LEDs each under a twin bulblike 1 piece translucent cover.
Still clear as mud?
Pete
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20th April 2017, 03:24 PM #132.
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20th April 2017, 03:44 PM #133.
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Yep - the 750 lumens per sq meter figure I quote is supposed to be "on the bench top".
Using the supposed lumens output of the lights and dividing that by the floor area assumes all the light goes almost straight down so it's only an approximation.
The approx is reasonable for a low ceiling shed that is approximately square.
The higher the ceiling and the longer/narrower the shed less light ends up going straight down.
That's why apps like the Visual Interior tool are really needed to see what is going on.
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20th April 2017, 03:57 PM #134GOLD MEMBER
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Bob the plan has always been to paint the walls and ceiling white, as is a ClearVue Max. Gotta see and breathe. It's the bigger list the boss has that's in the way.
Pete
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20th April 2017, 04:02 PM #135
so the key messages for thumbsucker are
have a play with the Visual Interior Tool to see how the lights he is looking at would need to be arranged.
and 2, make sure that any light fitting he might be thinking of directly importing has an Australian electrical safety certification.regards from Alberta, Canada
ian
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