How Often Should You Replace High Pressure Sodium and Metal Halide Grow Lamps?

[@PianoXfan1]

Love this channel, just tons of pure info thrown at you by a GOOD teacher who makes LEARNING interesting and fun! This channel is epic. Learned so much already.

[@Just4Growers]

+PianoXfan1 Thanks so much - that's just the kind of feedback that helps to keep me going! :)

[@johmale1]

same here, i like the way you explain things fast and stay in the topic ( no storys about cousins cats kittens)

[@stokbrkr]

I am impressed with your depth & breadth of knowledge. Thank you for sharing, again.

[@kirabarsmith9353]

Great subject selection and breakdown once again, I've learned a lot from your videos, thank you.

[@Just4Growers]

Thanks Kira, your kindness completes the circle. I appreciate it.

[@evoakaevo]

Im watching this with my 10 years old lambs. :D Now i know why i cant get enough harvest. :D

[@jmof0464]

You made me get into hydroponics my seedling are abuts 2" long and I take care of them as you say so they grow nicely thanks

[@POLITICALYCORRECTify]

Is there anywhere I can see stats of par readings after every 3 or 6 months of hps use??

[@ronnieanglin2018]

damn I really like the way you break it down. ..everything makes sense after listening to you

[@caligreen9762]

Wat about led's? . How often should they be replaced ?. Or at how many hrs do they start loosing power . And what's the reason diodes start going out ?. I had gotten an led 2 weeks in. One of them went out. Of course I got a replacement .. Thanks in advance

[@whiteowl8703]

I found that single ended need replacement every 6 months or two turns. DE HPS - I don’t know because at one year they are still blasting unbelievably strong. DE Bulbs are the greatest modern tek available for indoor growing. Don’t get suckered by the led lying hype.

[@halillika7341]

Can you know if the bulb has lost its efficiency just by looking at it? And how? Does it change its colour for example from yellow become mor whitish or vice versa? Or just lower the brightness? Thank so much if you understand what i mean and i apologize if you explained in the video but im bad at English.

[@mephisto5095]

some good information (as always) thanks. cheers

[@ronnieanglin2018]

keep up the great work!

[@jmof0464]

Hey Everest question when should I transplant my lettuce to my dwc system

[@jeremiahwilson1781]

your vids are getting so popular amongst us indoor hobby growers that you know what time it is dont you? Time for an Everest Just 4 Growers book. It would sell...trust me.

[@Just4Growers]

Heheh you're not the first person to suggest such a thing. I used to publish an indoor gardening magazine called "Urban Garden" which was another labor of love. :)

[@TheUnholyPosole]

How much do you think the monthly electricity bill is for that warehouse, in your video 2:19? Yowza!.

[@jakemercer7940]

Everest, would you happen to know if it is a good idea to mix microbes and enzymes? I was thinking about using Cannaboost, Cannazyme, Rhyzotonic, Mammoth P, and Photosynthesis + all together to see if my Mockberries and Pineberries can give me bigger berries than a quarter dollar coin. :D

[@smerk429]

@Everest Fern... Thank u for ur hard work. If we use a reflector with no qlass cover... & a humidifier/or if the room qets pretty humid at times... Is there a danqer that the moisture in the air can react with the hot bulb causinq the bulb to explode/burst/break/wear out Faster etc.? Would hiqher humidity rooms create fire hazards/shorten the life of bulbs/ballasts/fans/any equipment? Also what humidity % should we NEVER EXCEED as a MAXIMUM in a qrow room? Thank u. Anybody knowledqeable Please reply Soon.

[@johnmurner2418]

When do you know it's time to switch your ballast?

[@johnedmunds1380]

Good question. Someone with knowledge please reply

[@VitaliusVitality]

Quality video as always, mate. Keep it up.

[@bunndyboy]

Question. Can you use a 400w mh at 250w or should I get a 250w bulb

[@MassMedicalStrains]

Get a 250w bulb. Not good to dim MH

[@KeineAhnung1996]

so nicely made videos ^^

[@Just4Growers]

Thanks amigo.

[@M8ze879]

great video again!

[@zebedeetotty]

my C-MH 315, is hooked up to a, surge protected construction grade extension cord, most times i have a lightning storm or just really heavy rain the surge protector gets tripped. and i have to press the button again, now i have read online that this does damage to your C-MH. i just wanted your opinion, plus if i did not have a surge protector my whole light would blow right?

[@Just4Growers]

+zebedee totty Damage can occur to the CDM lamp if power is cut during the lamp warm up phase (so say for the first 8-10 min of operation) after the lamp has come up to full temperature/pressure cutting power will not harm the lamp at all. From an electrical standpoint, the surge protector is doing its job to protect the downstream device from high in-rush power. In this instance, a lightning storm. If this situation is a common occurrence you may want to consider a ‘whole house’ system (eg MidNite Solar Inc. ( www.midnitesolar.com ) and go to ‘surge protection devices’ under the Products tab. A product like this would protect all your equipment from potential electrical harm. I hope this information is helpful.

[@zebedeetotty]

thank you for the info, my house is earthed, i think the surge protector is just worn out, is it is happening more now it also all-ways trip's after only 0.5-1 sec of operation

[@funatall20s]

Hey Everest question: what do think of COB LED lights?

[@Just4Growers]

I hear great things. I'm going to cover COB and other LED-related technologies in a forthcoming feature series all about LEDs. I promise!

[@funatall20s]

You are my favorite youtuber

[@Kcarviper]

Time to drop another $120 on a 1000 watt HPS. Was gonna go hortilux as iv as ways had good results but very exspensive. I went with a growlite that was $20 cheaper but failed early. They warranty my bulb. What 1000 watt bulb do you recommend for the $ Everest? Heavy fruiting plants ;)

[@tyed94]

Hortilux is the way to go. There are some others, but they just can't compare to Hortilux. But if you want to up your game I would look into the double ended lights. (Use to work for a hydro store.)

[@Des420]

www.amazon.com/iPower-GLBULBH1000-1000-Watt-Magnetic-Lumen-per-watt-per-dollar/dp/B005HJJC0I/ref=sr_1_4?ie=UTF8&qid=1470955168&sr=8-4&keywords=ipower+1000w I've been using them for going on 5 years and get great (1g per W+) results. If your room is on point then the bulb brand doesn't matter all that much. I've never had a Horti or Ushio or any of the other big name brands outperform these bulbs during a side by side. Especially at almost 100 bucks more each, they certainly were not worth the extra cost.

[@Just4Growers]

+Kcarviper DE or SE?

[@jonathanwills5350]

Everest I have a question if thats ok,is it ok to dimm my mh bulb?

[@Just4Growers]

Jonathan Wills I don’t recommend dimming metal halide lamps. The spectrum depends on that mercury for blueness. At lower powers the blue is the first to wane making the overall spectrum “greener”. Run metal halide lamps at 100% power.

[@arieltraasdahl-xh6ri]

Massively air-cooled the sh-t out of 6 1k lamps. 6" Blockbusters. 2 chains of 3 lamps inline. 8 to 2 6 inch Y to two chains of three Blockbusters to the 2 6 inch to 8 inch Y to 8 inch ducting to a Harbor Freight 8" blower with a 10" to 8" duct reducer cut and bent to shape to shroud to the 8" duct booster. 1.4 amps of 115v gets you 1,598 cfms. Cool air intake ran at night. Fun fact was that the blackening of the arc tubes of the single ended 1k HPS was severely diminished due to massive air-cooling. As we all know, the blackening of the ends of the arc tubes is a direct measure of lumen degradation. Classically, according to Ed Rosenthal, you'll lose 5% per three months with single ended HPS lamps. I experienced far less lumen degradation than this. Try it out. Harbor Freight blowers with duct reducers. Single ended 1k HPS lamps. There are some with 2,380 micromoles, 179,900 lumens. Better at the time than any 1k DE lamps. Cheaper. Can be air-cooled without lumen loss due to air-cooling. Baller.

[@joshgross8741]

It would be nice if you showed the par difference between an old and new HPS light. Numbers are always nice and I know you have a par meter.

[@therealjackfisher]

Make it simple and effective.

[@jeremiahwilson1781]

first off Ev....where in the hell do you get all this awesome brand new gear for your vids? Do you get to keep it? Damn. All your gear is stste of thee art for the home cultivator. And secondly....what about t5 bulbs? When is replacement time for them? The 2 and 4 footers? I use both in my veg room. 2 four foot six bulbers for moms and preflowers and a homemade mini steel wire two tier shelf rack (all the growers use the big ones - you know the shelves which i speak) with the 2 footer 2 bulb t5 fixtures zip tied under each shelf for my propagation station. Anyways...great vids bro. Yours are the best. But they are too quick. lol. We want longer Ev grow vids man!!!!!!!!!!!

[@Just4Growers]

Hi Jeremiah and thanks for your kind words about my vids. Change your T5s every 9 - 12 months if running for 18 hours a day, two or four foot. My research work with hydroponics and industry buddies means I can often get stuff at trade / friendly price-hence the vast amount of kit I appear to have for my "hobby". It's actually my work too. :)

[@charlieward7606]

shieettt my bulb is like 8 years old xD gonna go get new one tomorrow haha

[@NestleWaters88]

damn. will change the bulb today! :)

[@Just4Growers]

Yup. Time flies when you're growing and having fun! Most growers I speak to are overdue a lamp changeout.

[@TOPCLASSGAMER44]

Breath man just breath you remind me of a friend of mine after he had some of that finest Colombian hahaha

[@furioustortoise9828]

Okay, so here's a question for the replacement protocol: When you observe degradation issues your avg goon is gunna head back to the grown store and exclaim, " hey, what gives! I wanna new light!" But you say a decrease in spectral quality and luminosity will be observed as a natural degradation. But let's get weird here and say you have UNNATURAL degradation. Like really bad stuff. I imagine lamp manufactures have a line in the sand to judge when a warranty is justified. So my question(s) (finally) is what device(s) are we using to judge dredd that bulb?! PAR meter? Luminosity sensor? Both? Neither?! Sounds like luminosity is all you'd have to worry about testing since there could be a standard at your given wattage and know when your facing possible loss?

[@Just4Growers]

+Furious Tortoise Hi FT. The cheap and simple way to judge the output of a lamp is to measure PAR (typically in μmols) on a grid at a set distance from your lamp fixture. The true test is using an Ulbricht (integrating) sphere to measure the total output of the lamp but that's only available to labs. In the middle, you could invest in a spectral radiometer which would give you data on the spectrum / spectral distribution. I will go through all these methods in future vids.

[@michaelexman5474]

i don't know i have LED that the plants seem to love

[@joopajoo4152]

I recommend hybrid light setup.

[@Mybwain]

Replace your lamp each dark cycle.

[@Dimrain13]

Good video, but again LEC is not as efficient as DIY LED. Ever. It takes 4 LECs to get what I do with $1,200 of high quality COBs. 830ppfd in a 5x5... The whole 5x5 not just the center.

[@bunndyboy]

What country are you in bro?

[@jeepsblackpowderandlights4305]

Dont see how growers of food can make any money using HPS lights to grow food lol, i have 1200 watts of dusk to dawn HIDS on my property... it costs 75$ a month to power them at .12 cent a kilowatt for 13 hours a night.. How does a green house make money using tens of thousands of watts lols

[@Just4Growers]

Ask the Dutch.

[@trevorwilson5461]

Buy good 1000hps bulbs, not those Chinese knock offs. U see them on Amazon .I bought 2 new and one blew at 3800hours and I run 56 bulbs at once and the plant just didn't give me my normal yield from that third of the plant. I stick with general Electric .

[@LowLightVideos]

> " How Often Should You Replace High Pressure Bulbs ...". 😂 When millennium have passed, a black core dangles from a single wire and several new lighting technologies have come and gone ... Scientists will unearth your bones and revive you to say: Change your Bulb, cheapskate 🙎 .

[@sveinnsigurur647]

I have seen over a decade old hps bulbs, still going,

[@sveinnsigurur647]

Lol, not saying you should not replace bulbs regular. ;) Just saying i have and they (the decade old (or more)) didnt have much of that black stuff.

[@charlieward7606]

@@sveinnsigurur647 ahah mine is like 8 years old, only used like 4 continuous i guess but still, im gonna change em tomorrow xD

[@An7ithe0s]

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