# 4x4 LED lighting question **URL:** \ **Category:** Lighting\ **Created:** [October 31, 2021, 9:44pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626 "2021-10-31T21:44:16Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![Budman60](https://avatars.discourse-cdn.com/v4/letter/b/45deac/32.png) [@Budman60](https://ilgmforum.com/u/Budman60)\ **Post date:** [October 31, 2021, 9:44pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/1 "2021-10-31T21:44:16Z")
I have 1 Unit Farm UF2000 in a 4x4 tent. I don’t understand lighting needs. Would like to run 4-6 plants at a time. I like Unit Farm because of 3 year warranty and ballast is separate from LED panel. My question is how many watts per plant do I need?Thinking of picking up more lighting. ![image](https://global.discourse-cdn.com/growingmarijuana/original/4X/6/3/d/63df66c4bb50fe50c3ec91f76115d6160058e31e.jpeg) ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [October 31, 2021, 10:03pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/2 "2021-10-31T22:03:38Z")
It’s not how many watts a plant needs but more of a watts per space. You want around 650w for a 4x4 space. If you run quality leds, you can run around 480w. That light is probably only good for a space about 1.5ft x 1.5ft according to the PAR map they posted. ---
**Author:** ![yoshi](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/yoshi/32/680032_2.png) [@yoshi](https://ilgmforum.com/u/yoshi)\ **Post date:** [October 31, 2021, 10:27pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/3 "2021-10-31T22:27:08Z")
400watt Maxisun or Spider Farmer SP-2000 are really great design lights that puts out heavy fat buds I know for surely that’s cost friendly , but it’s all a matter of choice and coins 🪙! ---
**Author:** ![Newt](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/newt/32/688722_2.png) [@Newt](https://ilgmforum.com/u/Newt)\ **Post date:** [October 31, 2021, 10:42pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/4 "2021-10-31T22:42:19Z")
I have an SF-2000 in a 2x4. Works great there. If I had a 4x4, I’d want 2 of them. ---
**Author:** ![1HappyPappy](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/1happypappy/32/580108_2.png) [@1HappyPappy](https://ilgmforum.com/u/1HappyPappy)\ **Post date:** [November 1, 2021, 3:04am UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/5 "2021-11-01T03:04:14Z")
4 of those those would work but good advice all ready given… But here’s a video that may help ya understand what you need a little better. [![](https://global.discourse-cdn.com/growingmarijuana/original/4X/a/9/d/a9d9d9447584eb3b0620ca586a6a3e5ea1bd317f.jpeg "Understanding PAR PPFD and PFD To Maximize Cannabis Yield") ](https://www.youtube.com/watch?v=um-3HZXFnc4) ---
**Author:** ![yoshi](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/yoshi/32/680032_2.png) [@yoshi](https://ilgmforum.com/u/yoshi)\ **Post date:** [November 1, 2021, 2:37pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/6 "2021-11-01T14:37:18Z")
@Newt those are the long slim design panels with a dimmer driver on it right? I truly believe you get a good cheap well design light and you can do some really great grows. ---
**Author:** ![Newt](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/newt/32/688722_2.png) [@Newt](https://ilgmforum.com/u/Newt)\ **Post date:** [November 1, 2021, 3:05pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/7 "2021-11-01T15:05:25Z")
Correct. This: ![IMG_3484](https://global.discourse-cdn.com/growingmarijuana/original/4X/e/f/3/ef33b2da89ee3c96d838253f722600b27f1b3747.jpeg) ![IMG_3485](https://global.discourse-cdn.com/growingmarijuana/original/4X/5/8/0/580f02387419845e22c2d529f6062f2f1d3501f1.jpeg) ![IMG_3486](https://global.discourse-cdn.com/growingmarijuana/original/4X/8/f/f/8ff85c99cb98b778fbf20bfe91f29a3752befc5a.jpeg) ---
**Author:** ![spudeater65](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/spudeater65/32/607101_2.png) [@spudeater65](https://ilgmforum.com/u/spudeater65)\ **Post date:** [November 1, 2021, 5:59pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/8 "2021-11-01T17:59:55Z")
@yoshi @Newt @beardless I have a Vivosun V1000 LED light that came with the Vivosun kit we bought. My Dumb question is? The LED Light came with a clear cover on it which fell off and I thought nothing of it,Then as I look at lights I see the clear cover on them. So I put mine on and it seems to have focused the light better in one cycle I see a difference in the plants better looking So is this cover a part of the light or not? ---
**Author:** ![Newt](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/newt/32/688722_2.png) [@Newt](https://ilgmforum.com/u/Newt)\ **Post date:** [November 1, 2021, 6:02pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/9 "2021-11-01T18:02:08Z")
None of my lights came with a removable cover. ---
**Author:** ![beardless](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/beardless/32/275814_2.png) [@beardless](https://ilgmforum.com/u/beardless)\ **Post date:** [November 1, 2021, 6:46pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/10 "2021-11-01T18:46:39Z")
My recommendation is to contact vivosun directly. The cover could be to protect diodes, dust etc, or to magnify / direct the light. I would only be guessing. Hopefully Vivosum reesponds. ---
**Author:** ![yoshi](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/yoshi/32/680032_2.png) [@yoshi](https://ilgmforum.com/u/yoshi)\ **Post date:** [November 1, 2021, 7:00pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/11 "2021-11-01T19:00:45Z")
@spudeater65 It should work , you have to find the plant height that give it its best output to the plant canopy . Have you adjusted the plant height! ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [November 1, 2021, 7:45pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/12 "2021-11-01T19:45:29Z")
Likely just the cover that makes it waterproof ![image](https://global.discourse-cdn.com/growingmarijuana/original/4X/e/b/f/ebf96c5b5f5d3eae2b652687d63e4f80611a909c.jpeg) ---
**Author:** ![spudeater65](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/spudeater65/32/607101_2.png) [@spudeater65](https://ilgmforum.com/u/spudeater65)\ **Post date:** [November 1, 2021, 8:02pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/13 "2021-11-01T20:02:15Z")
Yes I did have to move it up 3" I also did the hand test and my hand got warm something that never felt before that much warmth. Waterproof yes. I did check the DLI’s they are up 767 middle 545 at the corners ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [November 1, 2021, 11:10pm UTC](https://ilgmforum.com/t/4x4-led-lighting-question/77626/14 "2021-11-01T23:10:41Z")
You want a light with a ppf of 1200 umols per second or greater for 4x4.