ratdog Posted February 22, 2021 Share Posted February 22, 2021 mine get pretty damn warm to the touch, i couldn't grip them very long after they have been on a few hours or more on full power 1 Link to comment Share on other sites More sharing options...
Placeinspace Posted March 5, 2021 Share Posted March 5, 2021 (edited) At 300w mine bloody hot I can’t keep hand on it for more than a few seconds so I dunno what em punk is referring to but at 300w any light is going to get hot , all be it not as hot as hps or hid.... but don’t underestimate the heat the Attis (or any mid range led at a true wattage) give off , not unless mines broke ? Should it be giving off that much heat to the touch at full power ? A question I believe I’ve asked before on this thread... Edited March 5, 2021 by Placeinspace Link to comment Share on other sites More sharing options...
Dodgee Posted March 5, 2021 Share Posted March 5, 2021 The light is functioning as it should, the whole point of the heat sink is in the name heat sink . The heat generated by the diodes and the board tracings gets pulled away from the board into the sink where it is able to dissipate into the atmosphere.. I'd be more worried if they didn't get hot. The heat produced is roughly equal to hid its just emitted/radiated in a different manner. HID bulbs blast heat downwards from the bulb and reflector. LEDs pull the heat up and away from the canopy. That's my understanding anyway 4 Link to comment Share on other sites More sharing options...
Nuggsy Posted March 12, 2021 Share Posted March 12, 2021 A question for the Attis mob... i have 2 x 300w Attis in a grow space . 2.2 m long .. 0.8m wide.. 2m high... 5 weeks into 12/12... all going well , i have them about 12=14 inches above canopy on full power..they are not quite covering the area... would it be overkill to stick another Attis in to cover the whole space ?...,,, any advice would be cool chaps Link to comment Share on other sites More sharing options...
Nuggsy Posted March 20, 2021 Share Posted March 20, 2021 what happened to the Attis Gang ????????? Link to comment Share on other sites More sharing options...
ratdog Posted March 20, 2021 Share Posted March 20, 2021 (edited) On 12/03/2021 at 9:25 PM, Nuggsy said: A question for the Attis mob... i have 2 x 300w Attis in a grow space . 2.2 m long .. 0.8m wide.. 2m high... 5 weeks into 12/12... all going well , i have them about 12=14 inches above canopy on full power..they are not quite covering the area... would it be overkill to stick another Attis in to cover the whole space ?...,,, any advice would be cool chaps i have two maxibright 300ws and a cmh 315 in a 1.2m2 and it's looking like a bumper harvest if i can keep them happy, the lights are a few inches away from the buds as they stretched like fuck Edited March 20, 2021 by ratdog 3 Link to comment Share on other sites More sharing options...
Nuggsy Posted March 20, 2021 Share Posted March 20, 2021 Thanks, i was thinking of another Attis.. i reckon i could get them down to 10 inches and still cover the whole area, next grow in the Autumn. 1 Link to comment Share on other sites More sharing options...
ratdog Posted March 20, 2021 Share Posted March 20, 2021 Just now, Nuggsy said: i was thinking of another Attis.. i have upgraded already to par+ and i want to sell one of the 300's and i only added the cmh for extra heat, the 300's are quite cool compared to the par+`s the 465w kicks out some serious warmth and i haven't needed to worry and i now have a 600w par+ that will be similar to a hps i expect. Link to comment Share on other sites More sharing options...
superfruit Posted March 27, 2021 Share Posted March 27, 2021 (edited) Thinking about pulling the trigger on the 300 for my 120x60x110cm. I only grow 1 or 2 at the same time due to limit the damage if caught. I've grown both 250w and 400w hps using a ton of LST with autos to keep the plants low in height, but I want led dense buds! Figuring id have to use my own ratchets as literally every cm counts in my restricted space. Anyone else growing in a stubby tent, 120cm in height or less? P.s. only growing 1 or 2 means my filter can hang at ceiling height next to the current lighting: Edited March 27, 2021 by superfruit 3 Link to comment Share on other sites More sharing options...
Shumroom Posted March 28, 2021 Share Posted March 28, 2021 What about 2 x 200W's instead? Then you could have one plant per light Just with the space being rectangular instead of square. Atb Link to comment Share on other sites More sharing options...
superfruit Posted March 28, 2021 Share Posted March 28, 2021 Thought about 2 or a rectangle light but I'm really strapped for vertical space. Filter and fire extinguisher are positioned where the second light would hang. To be honest, 2 lights would probably be a bit much for my intentions and budget. I'm happy growing 1 nice plant, but may occasionally squeeze a second under the same light. Never doing 3 again - yielded more than I was comfortable with (local laws are considerably tougher than England) - damage mitigation/paranoia). The 200w would probably do for my needs but I'd rather spend just a few quid more to have the 300w and have the option to use the extra power. 1 Link to comment Share on other sites More sharing options...
onceandfutureking1 Posted April 13, 2021 Share Posted April 13, 2021 sorry to ask again but whats the best height from the tops of the plants and what power 7th week flowering & whats temps are you running lights on /off folks thanks Link to comment Share on other sites More sharing options...
ratdog Posted April 13, 2021 Share Posted April 13, 2021 43 minutes ago, onceandfutureking1 said: sorry to ask again but whats the best height from the tops of the plants and what power 7th week flowering & whats temps are you running lights on /off folks thanks i just finished a grow at full power just a few inches away 1 Link to comment Share on other sites More sharing options...
onceandfutureking1 Posted April 13, 2021 Share Posted April 13, 2021 23 minutes ago, ratdog said: i just finished a grow at full power just a few inches away thanks bud 1 Link to comment Share on other sites More sharing options...
Mr Robot Posted April 22, 2021 Share Posted April 22, 2021 Had to downgrade to a 0.8 x 0.8 X 1.8 tent, would the Attis 300w be overkill for that space? Just feel od be disappointed with the return on the 200w going through flower. Link to comment Share on other sites More sharing options...
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