Hpi 400w
Overview
Product sourcing insights & recommendations
The HPI 400W (specifically the Philips MASTER HPI-T Plus) is a legacy high-intensity discharge (HID) lamp widely used in industrial and sports lighting SignifyAccio. The market is currently in a "maintenance phase," with significant shifts toward LED high-bay retrofits driven by energy efficiency mandates and a 6.8% CAGR in industrial lighting through 2030 AccioPhilips.
1. Product Specifications & Technical Insights
The Philips MASTER HPI-T Plus 400W is a quartz metal halide lamp designed for high mounting heights Bulbtronics.
* Performance: Delivers ~32,000–35,000 lumens with a cool white light (4200K–4500K) and a 15,000-hour nominal lifetime SignifyBulbtronics.
* Efficacy: Operating at ~83 lm/W, it is significantly less efficient than modern LED alternatives which often exceed 140 lm/W Accio.
* Compatibility: Features a standard E40 mogul base and dual-ballast compatibility (HPI and SON), allowing for easy maintenance in older systems BltdirectSignify.
2. Market Trends & Sourcing Shifts (2026)
The market for these lamps is transitioning from active installation to legacy support Accio.
* The LED Retrofit Surge: B2B procurement is rapidly moving toward LED high-bay UFO lights (150W–200W models) as a direct "400W equivalent" Accio. Search interest for LED replacements spiked in early 2026, reaching its highest level in February .
* Total Cost of Ownership (TCO): Over 60% of buyers now prioritize TCO, factoring in the ~70% energy reduction offered by LEDs compared to HPI lamps Accio.
* Sourcing Availability: While major brands like Philips still supply these, buyers are increasingly utilizing platforms like Alibaba for high-volume legacy maintenance parts where bulk discounts of up to 20% are common Accio.
3. Key Procurement Options
For maintenance of legacy systems or full upgrades, the following options are currently available from verified suppliers:
Legacy HPI Lamps
Direct replacements for existing Philips HPI-T Plus systems, typically priced between $10–$16 per unit.
LED Retrofit Alternatives
150W–400W LED UFO high-bays designed to replace legacy metal halide fixtures, offering superior lifespan (50,000+ hours) and efficiency.
I can analyze the total cost of ownership (TCO) for transitioning your current HPI 400W setup to LED. Would you like to:
Philips Master Hpi T Plus 400w E40 Quartz Metal Halide Lamp
Products · 2 lists
PHILIPS MASTER HPI-T Plus 250W/645 400W/645 E40 1SL/12 Quartz Metal Halide Lamps with clear Outer Bulb
Wenzhou Honnex Trading Co., Ltd.🇨🇳CN10 yrs
Metal Halide Lamp Glass Tubular Cosmo White CPO-TT Xtra HPI-T Plus 400W E40 High Lumen Output Outdoor Use 4200K Ra65 15000h
Shanghai Jiyi Lighting Electrical Engineering Co., Ltd.🇨🇳CN13 yrs
Philips Metal Halide Lamp PHILIPS MASTER HPI-T Plus 400W/645 E40 1SL/12 928481600094
Wenzhou Bmt Lighting Co., Ltd.🇨🇳CN2 yrs
Wholesale Metal Halide Bulb MASTER HPI Plus 70W-400W BU HPI-T PLUS Quartz Metal Halide Lamp
High Quality Outdoor Explosion-proof 250W 400W 1000W 2000W Quartz Glass Straight-tube Metal Halide Lamp Factory Lighting HID-MHL
Hubei Derun Lighting Appliance Co., Ltd.verified🇨🇳CN9 yrs
400 Watt Lamp Metal Halide 400W Metal Halide Light Bulbs
Changzhou City Wujin Shinder Lighting Appliances Co., Ltd.🇨🇳CN20 yrs
Philips Metal Halide Lamp HPI-T 250W/400W/1000W 645 Projector Light Metal Halide Straight Tube
YIBU 400W Metal Halide Lamp E40 AC 220V 10000K Color Temp 8000-10000 Hours Lifespan
Lanxi Yibu Lighting Co., Ltd.🇨🇳CN22 yrs
Single Ended MH Euro E40 6100K 400W 600W 1000W Metal Halide Lamps
Hangzhou Triumph Imp & Exp Co., Ltd.verified🇨🇳CN9 yrs
400W E40 Metal Halide Lamp Fitting Without Ballast
Shanghai Millenium Industry Co., Ltd.verified🇨🇳CN9 yrs
Factory 400W Highbay and Floodlight E39/E40 Base Metal Halide Lamp 150W Power Tubular Pattern
YIWU HOSUN TECHNOLOGY CO., LTD.🇨🇳CN6 yrs
HPI-T 400W E40 4000K/5000K Glass Tubular Metal Halide Lamp 220V CRI 65 90 Lm/W 10000 Hours for Flood Light
Universelite Co., Ltd.🇨🇳CN23 yrs
PHILIPS Highlight 400W Metal Halide Lamp E40 Straight Tube Bulb Road and Industrial Lighting
400W E40 Self Ballasted Glass Metal Halide Light Bulbs 4200K Neutral White CRI 65 Tubular 220V
Changzhou Newtown Special Bulb Factory🇨🇳CN19 yrs
HQI-E 400W OSRAMMetal Halide Lamp E40 Clear 36500Lumen 4000K Natural White US Standard 122 280MM
Jianzheng Lighting Technology (jiangsu) Co., Ltd.🇨🇳CN8 yrs
High Light Efficiency Aquarium Metal Halide Lamp Straight Tube T46 250W/400W 20000K Marine Coral Culture Lamp
Changzhou Townlite Lighting Electric Co., Ltd.🇨🇳CN6 yrs
High Brightness 400W Metal Halide Lamp E40 Single Ended 220-240V 5700K Tubular MH Bulb for Industrial Floodlight Fixture
Kalite Lighting Co., Ltd.🇨🇳CN6 yrs
MH400W 400W Plant Growth Metal Halide Lamp Straight-Tube Agricultural E40 Base Plant Supplemental Lighting Floodlight
Wenzhou Lumen New Energy Technology Co., Ltd.🇨🇳CN18 yrs
Wholesale 400W Self Ballast Metal Halide Light 220V Energy Efficient for Industrial Warehouse Competitive Price
Lanxi Ocean Blue Technology Co., Ltd.🇨🇳CN1 yr
T46 Tubular 400w Pulse Start Metal Halide Lamp E40 Base High Lumens 4000K Day Light Color Hard Glass 8000 Hours Outdoor Lighting
Changzhou Haiyangxing Lighting Co., Ltd.🇨🇳CN1 yr
Factory Direct Supply Wholesale Price 250w 400w 600w 1000w Metal Halide Lamp
Sinowell (Shanghai) Co., Ltd.verified🇨🇳CN18 yrs
400W Tubular Metal Halide Lamp with E40 Base Green Red Yellow Colors Glass Material G12 and E39 Base Types
Zhongshan Yihua Lighting Co., Ltd.verified🇨🇳CN2 yrs
MH400W T46 E40 Light Metal Halide Lamp
Suzhou Tonhi Lighting Technology Co., Ltd.🇨🇳CN6 yrs
HoneyFly Metal Halide Bulb E40/E27 175W/250W/400W/1000W Natural White Single Ended Bulb Straight Tube Lighting
Changzhou HoneyFly International Co., Ltd.🇨🇳CN5 yrs
1000W E40 Metal Halide T Tube Lamp 220V-240V for Road and Outdoor Industrial Lighting
Jiaxing Bingsheng Lighting Appliance Co., Ltd.🇨🇳CN23 yrs
Hot Selling Popular Street Light Metal Halide Lamp 250w 400w 1000w Replacement Led
Zhejiang Corestar Photoelectric Technology Co., Ltd.verified🇨🇳CN6 yrs
HIGH WATT METAL HALIDE LAMPS
Ningbo Haishu Xiaoyue Lighting Electric Co., Ltd.🇨🇳CN4 yrs
70w 400w 1000w Metal Halide Replacement Lamps Halogen Light
Zhejiang Bozhou Marine Electric Technology Co., Ltd.verified🇨🇳CN17 yrs
Hydroponic 400w 1000W Watt Metal Halide MH HID LED Replacement Lamp
Hangzhou Triumph Imp And Exp Co., Ltd.verified🇨🇳CN17 yrsHydroponic 400w 1000W Watt Metal Halide MH HID LED Replacement Lamp
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Sources & References
27 sources cited · Verified industry data & reports
A Complete Overview of Ignitor Philips Ignitor S1 51 For Hpi 250 ...
www.alibaba.com
Understanding its technical specifications and proper maintenance practices is essential for ensuring reliable lamp starting, maximizing operational lifespan, and maintaining energy efficiency. This guide provides comprehensive information for installers, facility managers, and maintenance personnel to optimize the performance of the Philips S1 51 ignitor when used with HPI (High-Pressure Incandescent) lamps rated between 250W and 400W. The Philips S1 51 ignitor is a high-performance ignition device designed specifically for use with HPI 250W to 400W high-intensity discharge (HID) lamps. These ignitors play a crucial role in starting and stabilizing metal halide and high-pressure sodium lamps by delivering the necessary high-voltage pulse. With applications spanning industrial, commercial, and outdoor lighting, selecting the right type of ignitor ensures optimal lamp performance, longevity, and reliability. The Philips Ignitor S1 51 is a high-performance starting device designed specifically for High-Pressure Sodium (HPS) and Metal Halide (HPI) lamps ranging from 250W to 400W. Known for its reliability, durability, and consistent ignition, this ignitor plays a critical role in commercial and industrial lighting systems where powerful, long-lasting illumination is essential. Below are the key applications where the Philips S1 51 excels, ensuring optimal lamp performance and operational efficiency. Wide Compatibility: Designed for 250W–400W HPI and HPS lamps across multiple fixture brands · Durability: Resistant to voltage fluctuations and thermal stress · Easy Installation: Standardized design fits most existing ballast compartments · Safety Certified: Complies with international electrical and safety regulations (IEC, CE) The Philips Ignitor S1 51 is a high-performance ignition device designed specifically for use with high-intensity discharge (HID) lamps in commercial and industrial lighting systems.
PHILIPS HPI-T PLUS 400W/645 E40 | PH HPI-T PLUS 400W/645 E40 | ...
www.bulbtronics.com
Bulbtronics has the largest selection and best prices on all Bulbs / Lamps products. For more detailed specifications for this PHHPIT400W , please look below. Specs: LAMP / BULB|HID / HIGH INTENSITY DISCHARGE|METAL HALIDE|400W T14 3/4 E39,E40 / MOGUL SCREW COOL WHITE 4500K CLEAR 65CRI 20000H 283MM METAL HALIDE|400W|CLEAR|T14 3/4|E39,E40 / MOGUL SCREW|SINGLE-ENDED|283MM|47MM|HORIZONTAL +/- 20DEG|MERCURY 29.5MG|35000L|LAMP / BULB|HID / HIGH INTENSITY DISCHARGE|METAL HALIDE|400W T14 3/4 E39,E40 / MOGUL SCREW COOL WHITE 4500K CLEAR 65CRI 20000H 283MM METAL HALIDE|COOL WHITE|4500K|65CRI|20000H|QUARTZ METAL HALIDE LAMP WITH CLEAR OUTER BULB|PHHPIT400W|PH HPI-T-400W|0029295|PHILIPS|HPI-T PLUS 400W/645 E40|928073709230|MASTER HPI-T PLUS|BELGIUM|8539.32.00.90| Equipment(s) using this product:
A 400W HPI-T Tubular Dual Lamp with E40 Cap
www.bltdirect.com
Showing Associated Ballasts for this product. Quick Find: 6750 P/N: BSN400L33 · £117.66 · £141.19 inc. VAT · Quick Find: 10714 P/N: BSN400K407ITS · £101.93 · £122.32 inc. VAT · Previous Next · For HPI-T 400W Tubular Dual Lamp GES/E40 Cap · We make every effort in answering your questions.
Candela Corporation | HPI-T-PLUS-400W/645/E40
www.candelacorp.com
Candela Corporation provides high-quality lighting and electrical products for distributors. Explore our extensive catalog, including lamps, ballasts, sockets, and more. Trusted industry partner for over 30 years. Discover Candela Corporation's extensive range of lighting and electrical products. Serving distributors with top brands and exceptional service for over 30 years. Product ID · Lighting Terms · Shipping Services · Blind Shipping · HPI-T-PLUS-400W/645/E40 · Light Bulbs > HID · 400W T46 QUARTZ METAL HALIDE 4500K 65CRI E40 MOGUL SCREW 125V 11.3"MOL 0.4LBS · Vendor · EUROPEAN · Vendor Product Code · 8711500179906 · http://www.candelacorp.com/product/HPI-T-PLUS-400W/645/E40 · Among the fastest in the industry. - Learn More · Ideally positioned to serve you well. - Learn More · 25 Customer Service Representatives at your service. - Learn More · Copyright 2025 · All Rights Reserved ·
Master Hpi Plus 400w-Philips | PDF | Incandescent Light Bulb | ...
www.scribd.com
Master Hpi Plus 400w-Philips - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document provides product data and specifications for the MASTER HPI Plus 400W/645 BU E40 1SL/6 quartz metal halide lamp, including its technical light output, electrical characteristics, lifetime, approvals, safety information, and photometric performance data. This document provides product data and specifications for the MASTER HPI Plus 400W/645 BU E40 1SL/6 quartz metal halide lamp, including its technical light output, electrical characteristic…Full description This document provides product data and specifications for the MASTER HPI Plus 400W/645 BU E40 1SL/6 quartz metal halide lamp, including its technical light output, electrical characteristics, lifetime, approvals, safety information, and photometric performance data.Read more
Philips MASTER HPI-T Plus 400W/645 E40 1SL/12 - Signify
www.signify.com
Product Description · Philips MASTER HPI-T Plus 400W/645 E40 1SL/12 · Order code: 928481600096 · Full order code: 871150017990615 · Expand all · Cap-Base · E40 · Operating Position · P20 [Parallel +/-20D or Horizontal(HOR)] Nominal lifetime · 15,000 hour(s) Life to 50% Failures (Nom) 15,000 hour(s) Color Code · Order product name · MASTER HPI-T Plus 400W/645 E40 1SL/12 · Full product name · MASTER HPI-T Plus 400W/645 E40 1SL/12 · Full product code · 871150017990615 · Order code · 928481600096 · Material Nr. (12NC) 928481600096 · Numerator - Quantity Per Pack · As the manufacturer of Philips products, Signify.com is the new home of the Philips lighting catalog, alongside Dynalite and other Signify brands. Philips MASTER HPI-T Plus, | Signify