BilgePump Posted July 21, 2022 Share Posted July 21, 2022 Red heatsinks on the par+ pro's buddy 1 Link to comment Share on other sites More sharing options...
catweazle1 Posted July 21, 2022 Share Posted July 21, 2022 Just now, BilgePump said: Red heatsinks on the par+ pro's buddy Par+ 465 running at 70w giving about 500umols at 6". The plants responded almost immediately with increased turgor moving from 72w of fluorescent T5's. 4 Link to comment Share on other sites More sharing options...
lilllad Posted July 23, 2022 Share Posted July 23, 2022 (edited) hi guys has anyone got an update on this lumii led please? did anyone manage to find charts for the different power settings? how are the girls looking... thanks Edited July 23, 2022 by lilllad correction Link to comment Share on other sites More sharing options...
Buddemon Posted August 3, 2022 Share Posted August 3, 2022 Be careful with these lumii 720w leds i took out the 13amp fuse in the plug that it came in, and replaced it with a 3amp fuse, coz when i done my ohms law it required a 3 amp max, but on the fixture it states 5amp max but the plug has 13amp lol, so thats why led lights always hum or buzz due to overload on amperage. Something to consider when working with lumii leds 3 Link to comment Share on other sites More sharing options...
KC Posted August 3, 2022 Share Posted August 3, 2022 I don't know much about electrics but the fans from growshops are another one to watch out for. Last time I bought a fan they supplied me with a lead as rvks come with a kettle type plug now. They had 13amp plugs which are way too big. 4 Link to comment Share on other sites More sharing options...
mysticriver Posted August 4, 2022 Share Posted August 4, 2022 17 hours ago, Buddemon said: coz when i done my ohms law it required a 3 amp max how do u work it out? mystic Link to comment Share on other sites More sharing options...
Buddemon Posted August 4, 2022 Share Posted August 4, 2022 Go for it mate you won't regret it Link to comment Share on other sites More sharing options...
Buddemon Posted August 4, 2022 Share Posted August 4, 2022 Ohms law is calculated using a formula its very complicated. But there's a Google ohms law calculator like Google translate, very easy. It'll ask you for voltage in this instance its 230v Then for wattage its 720w and press calculate 3.133amps so you'd round up to the nearest whole number ie 3amps Link to comment Share on other sites More sharing options...
Shumroom Posted August 6, 2022 Share Posted August 6, 2022 Rounding up from 3.something would mean you'd use a 5amp fuse. you've accidentally rounded down @Buddemon Atb 3 Link to comment Share on other sites More sharing options...
Buddemon Posted August 6, 2022 Share Posted August 6, 2022 The light fixture states 5amp but ohms law says otherwise Link to comment Share on other sites More sharing options...
Shumroom Posted August 6, 2022 Share Posted August 6, 2022 On 04/08/2022 at 5:09 PM, Buddemon said: Ohms law is calculated using a formula its very complicated. But there's a Google ohms law calculator like Google translate, very easy. It'll ask you for voltage in this instance its 230v Then for wattage its 720w and press calculate 3.133amps so you'd round up to the nearest whole number ie 3amps 3.133 is the number you've given. If you use a 3amp fuse it would likely blow. As you mentioned, "you need to round up". I've never seen a 4amp fuse for general electrical use so the next fuse up would be a 5A. Hope this helps. Atb 7 Link to comment Share on other sites More sharing options...
Arthur Mix Posted August 7, 2022 Share Posted August 7, 2022 (edited) I allow for headroom when rounding up Don’t do what this person did seriously Edited August 7, 2022 by Arthur Mix 8 Link to comment Share on other sites More sharing options...
mysticriver Posted August 7, 2022 Share Posted August 7, 2022 so we use ohms law to determine what fuse we need... the draw of the equipment ? thanks for the clarity @Shumroom, @Arthur Mix & @Buddemon mystic 1 Link to comment Share on other sites More sharing options...
Shumroom Posted August 7, 2022 Share Posted August 7, 2022 @mysticriver kinda yeah. Ohm's law states: that the current through a conductor between two points is directly proportional to the voltage across the two points(from Wikipedia) Atb Link to comment Share on other sites More sharing options...
Buddemon Posted August 7, 2022 Share Posted August 7, 2022 Yes ohms law in this instance determines how much amperage is allowed to come through the plug i don't know why that picture shows a plug hotwired very dangerous no headroom for impedance in anyway shape or form Link to comment Share on other sites More sharing options...
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