I have a side hustle where I sell signs that are on display. they all require 5v and if you asked the manufacturer they say .5 amp but I've tested and really only about .3 amp.. I have 140 signs.. so thats like 210w..
I currently use a computer power supply connected to 40 separate USB ports which seems to work.. problem is, it drops below the 5v mark when all the signs are up and running.. so maybe 20 signs per computer power supply? or should I run buck converters on the 12v rail to get 5v out of them too? is there an easier way??
what do you think about this link? if I used 6-10awg wire as main trunks I could probably get the current I need.. but yes.. its a cheap chinese power supply.. I should stay with the computer power supply idea and make more of them? I've also have a few 5v 2amp wall worts where I solder a USB port every 12 inches or so and make my own USB 10 port hub.. but keep in mind.. the more power the brighter they are.. and my events are often outside.. thank you in advance..
https://www.ebay.com/itm/300W-5V-60A-AC-DC-Regulated-switching-power-supply-for-LED-Strip-Light-Display/152778823325?_trkparms=aid=111001&algo=REC.SEED&ao=1&asc=20160908105057&meid=661e774ea1e04b97850390cdd5c5fd5f&pid=100675&rk=2&rkt=15&mehot=none&sd=274209808831&itm=152778823325&pmt=0&noa=1&pg=2380057&_trksid=p2380057.c100675.m4236&_trkparms=pageci:58851052-3ca4-11ea-9871-74dbd1802fcd|parentrq:ca66870816f0a9c120b1b62fffe09939|iid:1
ohh and I use a honda 2200i inverter generator to power them..
I currently use a computer power supply connected to 40 separate USB ports which seems to work.. problem is, it drops below the 5v mark when all the signs are up and running.. so maybe 20 signs per computer power supply? or should I run buck converters on the 12v rail to get 5v out of them too? is there an easier way??
what do you think about this link? if I used 6-10awg wire as main trunks I could probably get the current I need.. but yes.. its a cheap chinese power supply.. I should stay with the computer power supply idea and make more of them? I've also have a few 5v 2amp wall worts where I solder a USB port every 12 inches or so and make my own USB 10 port hub.. but keep in mind.. the more power the brighter they are.. and my events are often outside.. thank you in advance..
https://www.ebay.com/itm/300W-5V-60A-AC-DC-Regulated-switching-power-supply-for-LED-Strip-Light-Display/152778823325?_trkparms=aid=111001&algo=REC.SEED&ao=1&asc=20160908105057&meid=661e774ea1e04b97850390cdd5c5fd5f&pid=100675&rk=2&rkt=15&mehot=none&sd=274209808831&itm=152778823325&pmt=0&noa=1&pg=2380057&_trksid=p2380057.c100675.m4236&_trkparms=pageci:58851052-3ca4-11ea-9871-74dbd1802fcd|parentrq:ca66870816f0a9c120b1b62fffe09939|iid:1
ohh and I use a honda 2200i inverter generator to power them..
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