Workshop LED lighting

samedi 1 août 2015

I am in the process of installing led lighting for the shed and though my experience may help others decide which may to go or perhaps to not go.

I ordered a pack of 10 90cm 14 watt T8 tube lights from Aliexpress, total cost $127. Specs are advertised as:-

72 Epistar leds SMD3528
Input voltage 90-260 vac
Cool white

I admit I didn't do a lot of research and am unsure if Epistar are good or bad, time will tell.

The lights consist a metal base very similar to a regular fluro base, (it is however very much more flimsy) a couple of spring clips to hold the base and the tube light itself which also looks like a regular fluro 90cm long with 2 pins at each end. The power connector is a sony type 2 pin connector frequently found on radios and some TV's. Mounting the lights is simplicity itself a single philips head tek screw secures each clip about 50-60cm apart the metal base clips in and the tube is fitted as you would a fluro tube. I ordered a pack of 10 mini junction boxes from the 'BAY one for each tube to mount close to the power end of the base as the power connector leads are quite short at around 7.5 cm long.

It's here that I ran into speed hump, the power connector wires are exceedingly flimsy, once the insulation is stripped back the copper wires look like 3 or 4 strands of 10 thou thick wire, not so easy to connect to a 1mm lighting cable even with a junction box. I connected the power leads to the 1mm cable in the junction box, tested by tugging slightly, the connection failed each time, I could get them to stay put by clamping the plastic insulation but wasn't happy that a good connection had been made so in the end I resorted to soldering and used the junction box as an anchor point.

The connecting wires carry 240v and the insulation looks awfully thin and is definately not double insulated, I kept the leads as short as possible to keep these leads away from the metal roof purlins.

My shed is 6m x 4.7m and the plan was to have 4 lights each side (2 on each purlin) and another two in the middle to give a total of 3 circuits, having just finished one side I doubt that I will need the middle lights, I'm quite impressed with the amount of light even for my feeble eyes.

I'm not sure where the LED power supply is located I think it is in the tube itself

I might add that one of the bases I received was bent as they are very flimsy, I attempted to straighten it and only succeeded in bending back the other way and making it worse. I did end up getting it sort of straight in the end. I also found that a lot of hash is generated at the lower end of the FM band, I can no longer tune to 93.7 and am now stuck with either the commercial stations or Triple J.


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