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I have a MarsHydro Reflector 150w and want to make it quieter. (and the ideas should generally apply to other Mars Hydro models, and many other brand or non-brand LED case or UFO lights, and maybe diy lights). ...replacing fans, adding heatsinks, increasing ease of airflow. all the specifics...

Yea, my original intent was something simple and small and quiet. I was looking at led strips, but the cost of the strips, power supply, and parts.. was about the same as a 90w 6 band manufactured light using 3w chips, and a lot of proven grows and reliability. The fan decibels is the one...

lol, yes, this is the opposite direction for me. I'm wanting to get the cooling to be silent from 5' away.

Hi plimsoul, Don't know if you've already sorting it out, but thought I'd chime in.. "Switching power supplies" allow for voltage adjusting. They're only a tad more expensive than 12v dc adapters (wall plug type), but some require a minimum wattage to be attached, so they're a little less...

bicit, it all depends on the use. Making a quick and easy diy array or playing around, vs setting up a lighting panel/design that is meant to last for a long time. quick and easy - just make sure the seller has a lot of reviews and almost all are positive. quick and easy is like buying a...

Wow, nice to see this thread grew roots. I moved onto a manufactured led light (now trying to figure how to cool it quietly), but a few pieces of info to add for the strips and diy... 5050 flex strips do come in 120led/m, and they can compare similarly to the rigid 5630 72led/m strips in terms...

solution - get a 6" rockwool cube. Cut it to 2"x4" or so. Dig it out to make a cup. Fill with loose potting soil or soil mix, with mycorrhiza. Use a thick pin or large paperclip end, to poke a lot of holes in the sides and bottom of the rockwool, to increase the air permeability, increase air...

Okay, so.. a lot of equations there, .. I'd try to calculate it out, but I can't find the exact equations to use. And I was thinking a general idea might be enough. I'm reminded of one webpage I saw that had a crazy amount of equations and nomenclature, it was like a advanced physics...

Howdy y'all in general, how much are cfm requirements lowered, for each 1x increase in cooling surface area due to adding finned heatsinks? (example.. if a 100cfm fan can cool an aluminum slab.. and heatsink fins are added that double the slab's surface area.. what would the cfm new req's be)...

For an auto, requiring minimal transplant stress. -planting directly into a 3 gallon air-pruning container (fabric bag/superoots air pot/hercules pot/homemade container/etc) ... which will not benefit from air-pruning until the roots reach the sides/bottom of the 3gallon container vs -starting...

a few things corrected in the last post, the 72led/m or 60led/m is not about strip length... it's about hard strip (72led/m) or soft strip (60led/m).

Thanks for that. ..This is more design oriented. After seeing some led strip grows, and wondering how small and how little lighting could provide good growth. Lumen requirements per square foot, and how to avoid the wattage drop in the strips. And the least cooling required, also. minimalism...

Heat (typing this in an easy way to be ready to be copy&pasted to the top posts) For integrated led strip heatsinks: The flexible strips have just the plastic base for a heatsink, or whatever they are adhesive-taped to. The rigid aluminum backed strips have a layer of aluminum that looks to...

I read that you can also power a strip a few other ways.. to make possibilities Power P Strip ======= + and - (pos and neg) usual way is (+-)======== (the voltage loss grows towards the end) then the strip can also be fed the + at one end and the - at the other end (+)========(-)...

a pound of eggnog? or rain?

and reserving one more spot

oh, there's no way to edit a post once it's made? okay, I see the 'edit' link below.

(adding the info a bit at a time..) This is kind of written at a level of near beginner to a somewhat familiar with the topic. Most of the numbers are rounded to 2 digits, and useful at the scale they're given for. This is just for general info. disclaimer - I have no experience and very...

LEDs.. SMD 5050, 445nm & 660nm, and 120*angle. Are there any grow logs or photos of grows using only SMD 5050, and only those 2 bands? Thanks!

what diameter is good for the logs? (ie. how much distance from the bag bottoms to the soil/marsh/swamp/water) btw, one easy and cheap idea is to buy yards of burlap (by the yard), and then cut it into square sections... form it into a bundle and rope and knot the end. No stitching needed...