would it be safe to run a 250 watt high pressure sodium bulb with just a mogul socket and without a ballast??
we have often used 250 watt heat lamps with mogul sockets and without a ballast and nothing has ever happened. so would there be a difference, and if so what is it.
I found this:
HID (High Intensity Discharge) Technical Guide
“High Intensity Discharge” (HID) is a broad term used to describe any lighting system using a gaseous discharge arc lamp in which the gas-filled arc tube operates at several times the normal atmospheric pressure, compared to the near vacuum conditions in lamps. The various types of HID lamps are categorized and named by the type of gas contained within the arc tube.
The electrical arc produced between the two main electrodes of a HID lamp is much like a runaway short circuit, which can be sustained indefinitely. Once sufficient voltage is present, the gases within the arc tube are “ionized” to where they will conduct the arc current. Arc formation is not an immediate process. It can take several seconds for the arc to be established and several minutes until full light output is reached.
HID lamps are a negative-impedance device. This means that unless controlled, the current would continue to increase, causing the lamp to fail almost instantly after starting. For this reason, a ballast, which is a current-limiting device, must be used with every HID lamp. The ballast serves three functions. First, it provides the proper starting voltage to establish the arc. Second, it supplies the proper voltage to operate the lamp. Third, the ballast limits the lamp current to a prescribed level.
http://www.cec-newlighting.com/index/list.php?categoryId=102&Extension=jpg
The Inside (and Outside) View #31 – Microwaving A 1000W HPS Bulb
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High Pressure Sodium 150 Watt Lamp E39 ED23 LU150 Mogul $17.99 |
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6-High Pressure Sodium 250 Watt HPS Lamp E39 ED18 Mogul $125.00 |
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6-High Pressure Sodium 400 Watt HPS Lamp E39 ED18 Mogul $125.00 |
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Grow Lume High Pressure Sodium Lamp 1000W Mogul Base ET25 2000K Grow Light $68.99 |
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Grow Lume High Pressure Sodium Lamp 1000W Mogul Base ET25 2000K Grow Light 4-pk $264.00 |
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Grow Lume High Pressure Sodium Lamp 1000W Mogul Bse ET25 2000K Grow Light 12-pk $779.00 |
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250 Watt Plus High Pressure Sodium Lamp/Bulb With Mogul Base (New In Box) $9.00 |
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Plusrite LU1000 High Pressure Sodium Lamp 1000W Mogul $39.99 |
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lamp LIGHT BULB MOGUL BASE C70S62 HPS HIGH PRESSURE SODIUM NEW NIB BOX $11.99 |
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High Pressure Sodium 400 Watt HPS Lamp E39 ED18 Mogul $17.99 |
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High Pressure Sodium 250 Watt HPS Lamp E39 ED18 Mogul $17.99 |
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NEW 100 WATT HPS LAMP HIGH PRESSURE SODIUM – Lowest prices on ebay! Mogul base $8.99 |
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NEW 1000 WATT HPS LAMP HIGH PRESSURE SODIUM Lowest prices on ebay!! MOGUL S-52 $15.99 |
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NEW 400 WATT HPS LAMP HIGH PRESSURE SODIUM – Lowest prices on ebay! Mogul S-51 $9.99 |
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NEW 150 WATT HPS LAMPS HIGH PRESSURE SODIUM Lowest price on ebay Mogul base S-55 $8.99 |
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6-High Pressure Sodium 250 Watt HPS Lamp E39 ED18 Mogul $125.00 |
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6-High Pressure Sodium 400 Watt HPS Lamp E39 ED18 Mogul $125.00 |
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1000w High Pressure Sodium Lamp Mogul Base $42.50 |
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NEW 70 Watt High Pressure Sodium Lamps Best price on ebay! HPS MOGUL BASE S-62 $8.99 |
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(1603.) High Pressure Sodium Lamp Clear- MOGUL BASE $28.89 |
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Premium Life LU250 250 Watt HID High Pressure Sodium Lamp Bulb Mogul $9.95 |
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High Pressure Sodium HPS LU600,600W Mogul Base T15 Lamp $39.95 |
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Lot of 3 Radium RNP-T 250 Watt High Pressure Sodium Mogul Base Clear Tube Lamp $48.99 |
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Lot of 3 Philips C250S50 250 Watt High Pressure Sodium Mogul Base Clear Lamp $24.99 |
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LU100 100W Mogul Base HID High Pressure Sodium Lamps – NEW! $6.99 |
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LU150 150W Mogul Base HID High Pressure Sodium Lamps – NEW! $6.99 |
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LU250 250W Mogul Base HID High Pressure Sodium Lamps – NEW! $7.99 |
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LU400 400W Mogul Base HID High Pressure Sodium Lamps – NEW! $7.99 |
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LU70 70W Mogul Base HID High Pressure Sodium Lamps – NEW! $6.99 |
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Leviton Mogul Porcelain HID Lamp Holder High Pressure Sodium Light Socket 8756 $4.95 |
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EYE R57 NHR360 LC Mogul 360 Watt High pressure sodium Reflector Lamp bulb light $44.99 |
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NEW 250 Watt High Pressure Sodium Lamps. HPS Best price on ebay! MOGUL BASE S-50 $8.99 |
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250 watt ET18 Mogul Screw (E39) Base 2,100K Clear High Pressure Sodium HID Lamp $10.85 |
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High Pressure Sodium – 600W watt LU600/T15 HPS HID T15 Mogul Clear Lamp 2011 $40.00 |
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HPS High Pressure Sodium Mogul Bulb | LU 200 250 310 400 430 600 1000 W watt | $18.00 |
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HPS High Pressure Sodium Mogul Bulb | LU 200 250 310 400 430 600 1000 W watt | $18.00 |
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HPS High Pressure Sodium Mogul Bulb | LU 200 250 310 400 430 600 1000 W watt | $19.00 |
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HPS High Pressure Sodium Mogul Bulb | LU 200 250 310 400 430 600 1000 W watt | $18.00 |
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HPS High Pressure Sodium Mogul Bulb | LU 200 250 310 400 430 600 1000 W watt | $21.00 |
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HPS High Pressure Sodium Mogul Bulb | LU 200 250 310 400 430 600 1000 W watt | $39.00 |
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Sylvania 64490 – M400/U 400 watt Metal Halide Light Bulb $8.00 400 watt BT37 Mogul Screw (E39) Base 4,000K Clear Universal Burn General Lighting Metal Halide HID Sylvania Light Bulb… |
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Designers Edge L-789 Mercury Vapor 175-Watt Mogul Base Lamp $5.95 … |
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Philips 368696 – C70S62/ALTO High Pressure Sodium Light Bulb $10.57 70 watt 52 volt ED23.5 Mogul Screw (E39) Base 2,100K Clear Universal Burn ALTO Ceramalux High Pressure Sodium HID Philips Light Bulb… |
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LU70MOG 70 watt High Pressure Sodium Mogul Base Lamp 24,000 hour life5670 mean lumensBrand name manufacturer like Phillips, GE, Osram Sylvania or Venture.2100 kelvin21 color rendering indexLU70MOG… |
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LU200MOG 200 watt High Pressure Sodium Mogul Base Lamp 24,000 hour life19,260 mean lumensBrand name manufacturer like Phillips, GE, Osram Sylvania or Venture.2100 kelvin21 color rendering indexLU200MOG… |
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LU150MOG 150 watt High Pressure Sodium Mogul Base Lamp 24,000 hour life14,220 mean lumensBrand name manufacturer like Phillips, GE, Osram Sylvania or Venture.2100 kelvin21 color rendering indexLU150MOG… |
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GE 42729 250-Watt Multi-Vapor Quartz Metal Halide Mogul Light Bulb, 1-Pack $9.95 250 watt ED28 Mogul Screw (E39) Base 4,200K Clear Multi-Vapor Quartz Metal Halide HID GE Light Bulb (Enclosed Fixtures Only)… |
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GE 27187 – LU600/T High Pressure Sodium Light Bulb $89.95 600 watt T15 Mogul Screw (E39) Base 2,000K Clear Lucalox High Pressure Sodium HID GE Light Bulb… |