Why is my HPS light not working?

If the MH lamp starts and a new HPS lamp does not start, the ignitor probably needs to be replaced. If a new bulb, ignitor, and/or capacitor do not make the fixture work, then the ballast is probably defective.

How do you tell when my HPS bulbs are done?

My little joke at the beginning actually holds true: the easiest way to tell if an HPS bulb is burnt out is to put it in a fixture and see if it turns on. Apart from that, you can usually see some burning inside the bulb, around the inner tube.

How far should my HPS light be from my plants?

between 5 and 8 feet
HPS lights should not be placed inches from the plants, as you would place fluorescent lights; you should set HPS lamps higher, generally between 5 and 8 feet from the plants. Whether you have a reflector with your HPS light makes a difference for how close you can keep it from the plants.

What causes HPS lights to cycle?

High Pressure Sodium Lamps Normal end-of-life is usually indicated by the lamp cycling on and off. As the lamp accumulated burning hours, its operating voltage increases, eventually becoming higher than the voltage supplied by the ballast. The lamp extinguishes and cools. The ballast restrikes the arc.

How often should HPS bulbs be replaced?

If you use HPS bulbs, plan to replace them after 10-14 months of use.

How long does a HPS ballast last?

These devices usually run on a 220V AC electric supply at 50-60 Hz Frequency. According to the Certified Ballast Manufacturers Association, the average Magnetic ballast lasts about 75,000 hours or 12 to 15 years with regular use. In contrast, the Electronic ballast can last up to 20 years.

Do high pressure sodium lights use a lot of electricity?

High pressure sodium fixtures are not as energy efficiency as LEDs. In fact, LED bulbs use between 40-75% less electricity than a HPS fixture.

Do sodium vapor lights get hot?

The end caps of the arc tube would get as hot as 800 degrees C in operation, then cool to room temperature when the lamp was turned off, so the electrode terminations and arc tube seal had to tolerate repeated temperature cycles.

Why do sodium vapor lights blink on and off?

A: You’re suspicion is correct, Paul. The flickering you’ve noticed in the high-pressure sodium lamps used for illuminating areas such as streets and parking lots is a sign the energy-efficient bulbs are on their way out — literally. “It’s called cycling,” said Donald L. Steele III, engineer for Allentown.

Can you use HPS for the whole grow?

While either type can be used for the full growing cycle, when combined, using an MH grow light for vegetative growth and flowering under an HPS grow light is the most recommended HID grow light setup because utilizing the strengths of both types at the right times produces the best results.

Which is better led or HPS?

LEDs are much the same. Though they’re generally more efficient than HPS (with some clocking 2.8 µmol/joule), some LEDs are less efficient than high-quality HPS fixtures, and they give you less light. … All too often, the µmol/joule rating on HPS products states the lamp efficiency, not the actual product efficiency.

How do HPS lights work?

In a high pressure sodium lamp, a compact arc tube contains a mixture of xenon, sodium and mercury. … The mercury vapor raises the gas pressure and operating voltage, and the sodium vapor produces light when the pressure within the arc tube is sufficient.

How hot do HPS lights get?

HPS/MH operate at extremely high temperatures – 30000C/54000F. Much of that heat gets turned into infrared radiation. Infrared is a type of radiation that causes molecules to vibrate and heat up when it hits them. This infrared gets directed down on your plants just like the visible light radiation does.

Can I veg with a HPS bulb?

In response to the general question, can you use an HPS bulb for veg, the answer is yes. … Basically you can use just about any light out there for any stage of growth, the real question is how well do each bulb work for veg.

How much heat does a 600W HPS produce?

If you have a 600 Watt HPS lamp, the BTUs for that luminaire are the same as a 600 Watt LED. A single watt of power is equal to 3.41 BTUs so a 600W luminaire will produce 2,046 BTUs. This is true for both the LED and the HPS luminaires.

How do I keep my HPS light cool?

How many Btus is a 1000 Watt HPS?

A general rule of thumb is that for every 1 watt of HPS light, the end user will need 3 BTU’s of cooling power. Personally, I always go 20% over this to amount to account for environmental fluxes. Thus a grower running 4x 1000 Watt HPS lights will need a minimum of 14,400 BTU’s of cooling.

Do Grow lights provide warmth?

Yes, every light produces heat. It does not matter if the light comes from a bulb, diode, or a star like our sun; they all produce heat.

How can I keep my grow tent warm in the winter?

Instead of placing your grow tent on a cold floor, use a carpet or rug as a form of insulation. Wrapping the entire tent with building insulation is also a possibility; if it works to keep your house warm, it will work to keep your plants warm!

How far should a 600w HPS be from seedlings?

Unlike LED grow lights, HPS lights produce more heat, so growers need to know how far to put HPS lights from plants. The HPS distance from seedlings should generally be between 10 and 14 inches from plants.

How can I cool my room down without AC?

Use the exhaust fan to pull air out of the grow tent. You could simply vent it into the room, but then the room would heat up and you’d eventually have a similar problem. Unless the room is well air conditioned. But even then, you’re better off using the ducting to vent the air out a window or into the attic.

Can I leave my grow light on 24 hours?

A: In general, you should not leave grow lights on 24/7. Plants need a light-dark cycle to develop properly. It’s believed that they truly do “rest” during periods of darkness, and probably use this time to move nutrients into their extremities while taking a break from growing.

What temp is too cold for plants?

The general rule of thumb is that most plants freeze when temperatures remain at 28°F for five hours. Of course, there are exceptions to this rule. Seedlings, with their tender new leaves, often give up the ghost when temperatures dip to 32-33°F.

Can seedlings get too much grow light?

One common mistake in starting seeds is supplying the right amount of light. Yes, it is true that your seedlings need lots of bright light to grow healthy and strong—but they also need a period of darkness in order to thrive. … This does not make them grow faster, and can actually hinder the success of your seedlings.

Is too much grow light bad for plants?

To put it bluntly, yes, too much light can eventually eliminate your plant. The light intensity can produces increasingly severe damage to your plant to the point where it dies. It can also dry out the plant to the point where it no longer has the water it needs for growth and photosynthesis.