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400 Watt HID Retrofit

Popular and proven lighting retrofit kits for 400 watt metal halide, high pressure sodium, low pressure sodium, or mercury vapor fixtures. Whether you have an indoor or outdoor fixture, these typically fit inside and provide great energy savings with decreasing or eliminating maintenance costs, all while increasing light levels. LED, induction, and perhaps fluorescent technology are all included below. There are also some different Kelvin temperature options, but most applications now use 5000K-5500K, which are brighter and emit a pure daylight white color, like the color of the white on this page.

You will see both 150W and 200W efficient options below. If your aim is higher energy savings and keeping the existing light levels or you don't mind a little bit less, we recommend around 150 watts. If you would like to still get over 50% energy savings and make sure your area is still the same brightness or even about 10-20% brighter (depending on your lamp/fixture condition), go with the 200 watt kits. Please check the dimensions of each product to ensure fitment into your fixture. If they don't fit and you have a moderately old fixture, we have plenty of new fixture options as well if a retrofit won't work.

If none of these fit your needs, please contact us or email our sales team and we'll be happy to help you find the right kit.

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  1. Main Image 3BL LED 150 Watt DLC QPL Listed RPK Plate Type Retrofit Kit for 400W HID Replacement 16,500 Lumens 5000K
    Specifications
    • Wattage: 150 Watt
    • Color Temp: 5000K
    • Life: 60,000 Hours
    • Lumens: 16,500
    • Technology: LED - Retrofit Kit
    • CRI: >70
    • Length: 7.08"
    • Voltage: Multivolt 120V-277V
    $255.99
    PART# 3BL-LED-RPK-150W-DIM-5000K
    MOQ: 1
  2. Main Image 3BL LED 150 Watt DLC QPL Listed RPK Plate Type Retrofit Kit 347-480V for 400W HID Replacement 17,100 Lumens 5000K
    Specifications
    • Wattage: 150 Watt
    • Color Temp: 5000K
    • Life: 60,000 Hours
    • Lumens: 17,100
    • Technology: LED - Retrofit Kit
    • CRI: >70
    • Length: 7.08"
    • Voltage: 347-480V
    $322.95
    PART# 3BL-LED-RPK-150W-DIM-480V-5000K
    MOQ: 1
  3. NaturaLED LED100HID/EX39/1200L/850 DLC 4.0 Listed 100 Watt LED Corn Light Retrofit Lamp for 400W HID E39 Base
    Specifications
    • Wattage: 100 Watt
    • Life: 50,000 Hours
    • Lumens: 11,000
    • Technology: LED
    • CRI: >80
    • Length: 11.1"
    • Voltage: Multivolt 120V-277V
    • Base type: E39/E40 Mogul Base
    $164.27
    PART# LED100HID/EX39/1100L/850
    MOQ: 1
  4. HiLumz DM120 120 Watt High Efficacy LED Retrofit Kit Replaces 400W HID DLC Premium Listed
    Specifications
    • Wattage: 120 Watt
    • Life: 50,000 hours
    • Lumens: 18,300
    • Technology: LED - Retrofit Kit
    • CRI: 80+
    • Voltage: Multivolt 120V-277V
    $250.88
    PART# DM120
    MOQ: 1
  5. Main Image Energetic Lighting EGLEDBP-110SN 115 Watt EX39 Big E LED Ballast Bypass HID Retrofit Bulb 5000k
    Specifications
    • Wattage: 115 Watt
    • Color Temp: 5000K
    • Life: 50,000 hours
    • Lumens: 14,000
    • Technology: LED
    • CRI: 80
    • Length: 12.8"
    • Voltage: 208-277V
    • Base type: EX39
    $158.33
    PART# EGLEDBP-110SN
    MOQ: 1
  6. Light Efficient Design LED-8027M40-A 100 Watt Corn Cob Post Top Roadway Retrofit Lamp 4000K
    Specifications
    • Wattage: 100 Watt
    • Color Temp: 4000K
    • Life: Up to 50,000 Hours
    • Lumens: 14,666
    • Technology: LED
    • CRI: 85
    • Length: 11.8”
    • Voltage: Multivolt 120V-277V
    • Base type: E39/E40 Mogul Base
    $179.88
    PART# LED-8027M40-A
    MOQ: 1
  7. NaturaLED LED-RKIT120HID DLC Premium Listed 120 Watt LED HID Retrofit Kit Dimmable 400W HID Equivalent EX39 Base Included
    Specifications
    • Wattage: 120 Watt
    • Life: 50,000 Hours
    • Lumens: 15,554 - 15,735
    • Technology: LED - Retrofit Kit
    • Length: 5.9"
    • Voltage: Multivolt 120V-277V
    $199.97
    PART# LED-RKIT120HID/40K | LED-RKIT120HID/50K
    MOQ: 1
  8. NaturaLED LED-RKIT200HID DLC Premium Listed 200 Watt LED HID Retrofit Kit Dimmable 400-575W HID Equivalent EX39 Base Included
    Specifications
    • Wattage: 200 Watt
    • Life: 50,000 Hours
    • Lumens: 28,678 - 29,025
    • Technology: LED - Retrofit Kit
    • Length: 10.04"
    • Voltage: Multivolt 120V-277V
    $346.17
    PART# LED-RKIT200HID/40K | LED-RKIT200HID/50K
    MOQ: 1
  9. NaturaLED LED-RKIT50HID DLC Premium Listed 50 Watt LED HID Retrofit Kit Dimmable 250-400W HID Equivalent EX39 Base Included
    Specifications
    • Wattage: 50 Watt
    • Life: 50,000 Hours
    • Lumens: 6,738 - 6,837
    • Technology: LED - Retrofit Kit
    • Length: 5.9"
    • Voltage: Multivolt 120V-277V
    $138.47
    PART# LED-RKIT50HID/40K | LED-RKIT50HID/50K
    MOQ: 1
  10. Light Efficient Design LED-8034M50 150 Watt High Bay Retrofit Lamp Dimmable with External Driver E39 Base 90-305VAC
    Specifications
    • Wattage: 150 Watt
    • Color Temp: 5000K
    • Life: Up to 50,000 Hours
    • Lumens: 19,344
    • Technology: LED
    • CRI: 85
    • Length: 10.23"
    • Base type: E39/E40 Mogul Base
    $136.80
    PART# LED-8034M50
    MOQ: 1
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All of the products listed above are popular items typically used to replace 400 watt metal halide or sodium lighting components in your existing light fixture. Most are LED as they are smaller format and pack more of a punch for the wattage used. That also means they are more efficient than induction and fluorescent.

You will notice that some LED retrofit kits contain only diodes on one side so they shine in only one direction. These are great for pole lights, wall packs, and any other fixtures where need to shine in more of a straight line. They are also ultra-efficient because you don't lose light anymore by using the old reflector in the fixture. These have the LED driver inside the unit, so you just bypass the existing existing/old ballast and wire the power or circuit directly to the socket. We do have options with external LED drivers but most of these smaller units have them internally and save space.

400W HID's are one of the most popular and prevalent wattages out there. They are used extensively throughout indoor and outdoor lighting. Most of the bases in this wattage are E39/E40 mogul base size. We do have medium E26/E27 options though if needed with these same kits. You will save over 50% energy using any one of these bulbs, with the new wattage using around 200W or less to replace a 400W HID, which uses closer to 455-460 watts of power with the old ballasts.

400W metal halide and high pressure sodium fixtures are very popular in high bay and warehouse lighting with between a 18-28 foot mounting height. This wattage is also used in many light poles, street, wall pack, building exterior, landscape, and higher ceiling warehouse and industrial spaces.

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