Best lights led, cob, hps ?

[LED Harry]

Was looking at the HLG 350R but in flower it covers 3ft x 5ft ideally I need 2 lights that cover 4x4.
Do we have anyone on here from HLG that can advise ?

hi buddy

2x 350r (660w total and 1822 ppf) is a little on the bright side for a 4x4 but if you are pulling great results from 2x600hps in the same space which is also a little on bright side then you will be golden

but there are many more options

3 x 260 kits (720w total) this will be cheaper as using the slightly older rspec board. still on the bright side for a 4x4

1 x 600 rspec (600w total) this is by far best value led in the country right now. over 1530ppf will fill a 4x4 very nicely with high ppfd wall to wal and i can do good price on these for members. i would recommend this as too much hlg light is bad for yield.

[LED Harry]

That's the conclusion I came to after doing a lot of reading up on led.

For equal yields, results I've seen here suggest that 2w of led = 3w of hps. That would be a total of 800w (top quality) led to replace 2 x 600w hps.

does make sense that as top quality high freq 400volt hps is around 2umol but is not cheap either so poor choice overall when looking at lifespan cost

[Farmer Geddon]

I keep forgetting that there are different flavours of hps. To me, an hps for getting started is a kit that has a resin sealed magnetic ballast, a Euro reflector and a lamp. About £70 for a 600w light.

Compared to a 400w led, the hps works out about £90 more in leccy for a full photo grow but it does get a pauper started. £270 in extra leccy the first year plus £70 for the light. By the end of that year, the savings in dealer weed should pay for a good led.

Poor people always end up paying more in the long run, that's how the world works.

[CheapHomeGrown]

I keep forgetting that there are different flavours of hps. To me, an hps for getting started is a kit that has a resin sealed magnetic ballast, a Euro reflector and a lamp. About £70 for a 600w light.

Compared to a 400w led, the hps works out about £90 more in leccy for a full photo grow but it does get a pauper started. £270 in extra leccy the first year plus £70 for the light. By the end of that year, the savings in dealer weed should pay for a good led.

Poor people always end up paying more in the long run, that's how the world works.

You couldn't be more wrong, the Hellion 750w DE HPS ( top quality build) give you a massive boost compared to a standard 600w HPS(20% more light per watt vs single ended bulb), the lights designed to cover a 5ft x 4ft canopy, cost about £400.
Leds are more effective but they cost twice as much.
I don't know how much your pull off your leds but I have pulled 16oz's of an old style 600w lumtek ballast.

[scoot]

You couldn't be more wrong, the Hellion 750w DE HPS ( top quality build) give you a massive boost compared to a standard 600w HPS(20% more light per watt vs single ended bulb), the lights designed to cover a 5ft x 4ft canopy, cost about £400.
Leds are more effective but they cost twice as much.
I don't know how much your pull off your leds but I have pulled 16oz's of an old style 600w lumtek ballast.

Can easily pull 20oz+ using 400w-440w of LED bud.

[Lazee_Daze]

I love my Budget Lights. I am running now, and will get back to post on how my new 500W perform's. But for now things are looking really good, no complaints.

I have just started a grow on 600 watt budget lights. I can't afford a massive outlay on an old age pension. If the lights fail I have my 600 watt HPS on standby but from the many reviews of my budget light I have every confidence.

[Lazee_Daze]

I've thought of more savings/advantages to LEDs.

The fan supplying cooling air for the HPS bulb can be removed.. Since no cooling air is required to be pumped in then that fan can be removed. Once I get the filter extracting air from the tent I will develop a negative pressure and sufficient fresh air will be drawn in through the ventilation grills by the filter out take.

The amount of electrical cable decreases as no relay is needed between the light and time clock. The LED plugs straight into the clock. That saves an immense mess of cable.

In fact I can run my 1 metre by 2 metre high tent with just one 125mm fan working the filter.

[Farmer Geddon]

You couldn't be more wrong, the Hellion 750w DE HPS ( top quality build) give you a massive boost compared to a standard 600w HPS(20% more light per watt vs single ended bulb), the lights designed to cover a 5ft x 4ft canopy, cost about £400.
Leds are more effective but they cost twice as much.
I don't know how much your pull off your leds but I have pulled 16oz's of an old style 600w lumtek ballast.

I haven't used my leds yet. With my magnetic ballast 600s, I was averaging close to 18oz in a cold cellar and in a bedroom grow with an ideal climate I got 25oz. Fem seeds scrogged in 16 sft per light.

I wouldn't spend anywhere close to £400 on a light if it wasn't the best currently available. My philosophy is either buy the best there is or buy the cheapest that will do the job. 400v hps was once the best available but not now. Same with my 315w cmh lights. Once they were the best you could get, not now. Even resin sealed hps were the best once. A ballast that will never rattle? Wow.

Autos have been a game changer in more ways than one. Running the light 24/0 makes leccy usage more important than it used to be. 315w cmh in my cupboard with a slowed down 8" rvk draws 400w. For 24/0, that's £13 a week on my tariff. 2 x HLG 100 + an AC Infinity S4 will draw 220w and 24/0 will cost me £7 a week.

[CheapHomeGrown]

Can easily pull 20oz+ using 400w-440w of LED bud.

Based on a good led being 30% more effective, I am sure a few growers out there that could pull more than 20oz with 440w led.
The thing it most the yeild is down to the strain/plant(phoneo), veg time, plant count (size x plants)and the most important (skill set)
That's be honest, with most new growers, say the first 4 crops are not going to see any difference in yield between a 600w hps and a 600w LED because it takes years to get everything perfect and you start pulling the maximum crop from your light.

Some growers never get there, a few different autos at different stages in flower, or a single plant taking up 50% of the flower room.

[CheapHomeGrown]

I haven't used my leds yet. With my magnetic ballast 600s, I was averaging close to 18oz in a cold cellar and in a bedroom grow with an ideal climate I got 25oz. Fem seeds scrogged in 16 sft per light.

I wouldn't spend anywhere close to £400 on a light if it wasn't the best currently available. My philosophy is either buy the best there is or buy the cheapest that will do the job. 400v hps was once the best available but not now. Same with my 315w cmh lights. Once they were the best you could get, not now. Even resin sealed hps were the best once. A ballast that will never rattle? Wow.

Autos have been a game changer in more ways than one. Running the light 24/0 makes leccy usage more important than it used to be. 315w cmh in my cupboard with a slowed down 8" rvk draws 400w. For 24/0, that's £13 a week on my tariff. 2 x HLG 100 + an AC Infinity S4 will draw 220w and 24/0 will cost me £7 a week.

The hellion 750w hps is the best available hps light from all the review I have read, from running the most basic hps to the hellion could more of a 40% increase in light, again yeild is down to your growing skills and the strain(plant), do you think replacing the light for a 600w LED will make a lot of difference in your 4x4 flower room. I have grown critical mass(massive crop, some plants require less light as there mainly indica) Could pull 700g's grams per meter square, so 800g crop with a single 600w hps is possible in a 4x4ft flower room.