Skip to main content
Ushio EHD 500W Halogen Light Bulb

Ushio EHD 500W Halogen Light Bulb

$18.45
(No reviews yet)
SKU:
EHD (1000287)
UPC:
048777118627
Availability:
Stock Item
Shipping:
Calculated at Checkout
Product Description
High-output 500W line-voltage halogen lamp for precision illumination systems and equipment light sources.
SOSCleanroom
Overview

The Ushio EHD is a high-output 500W, 120V tungsten-halogen lamp built for applications that require strong, consistent light output and reliable operation over extended run time. It uses a G9.5 bi-pin base and is commonly specified where a stable incandescent/halogen spectrum is preferred. SKU: EHD (1000287).

Key Highlights
  • Electrical: 500W, 120V (line voltage)
  • Base: G9.5 Bi-Pin
  • Bulb Type: T4
  • Length: 100.1mm
  • Color Temperature: 3,000K
  • Light Output: 10,600 lumens
  • Average Life: 2,000 hours
  • UPC: 048777118627
Typical Applications
  • Instrument light sources and equipment illumination where halogen spectrum is required
  • Optical/inspection setups requiring high output with predictable performance
  • Installed systems designed around a G9.5, 120V/500W halogen lamp form factor
Handling Tip 
Halogen lamps run hot and are sensitive to surface contamination. Avoid touching the glass with bare hands. Use clean nitrile gloves and/or a lint-free wipe to minimize residue and reduce the risk of premature failure.
About Ushio
Ushio is a global photonics and specialty lighting company focused on light sources and light-based solutions used across industrial markets (including semiconductor-related applications), visual imaging, and life sciences. Ushio’s “Applying Light to Life” focus reflects a broad portfolio that spans specialty lamps and integrated lighting technologies.
Industry Update:
In July 2025, Ushio announced an agreement with ams OSRAM to acquire ams OSRAM’s Entertainment & Industry Lamps (ENI) business, with closing expected by the end of March 2026. During and after transitions in specialty lamp portfolios, customers may see changes such as labeling, packaging, part-number presentation, and distribution channels. Best practice: qualify replacements by the manufacturer code and critical specs (500W/120V, G9.5, and key dimensions like 100.1mm) to ensure continuity.
Need help selecting the right product?
If you need additional information please try our SOSCleanroom specific AI ChatBot which draws from our extensive cleanroom specific libraries.
Always confirm compatibility with your equipment model, required voltage (120V), wattage (500W), base type (G9.5), and critical dimensions (length/fit) prior to installation.
The Technical Vault
By SOSCleanroom
Specs & Compatibility
Replacement Guidance Handling & Storage Cleanroom Considerations
Quick Specs
Manufacturer / Ordering Code Ushio EHD | Mfg. Ordering Code: 1000287 | UPC: 048777118627
Lamp Type / Technology Tungsten halogen (single-ended)
Wattage / Voltage 500W / 120V
Base / Socket G9.5 Bi-Pin
Shape / Dimensions T4 | Length: 100.1mm
Color / Output 3,000K | 10,600 lumens
Average Life 2,000 hours
The Science: How a Halogen Bulb Produces Light
A halogen lamp is a type of incandescent source. Electrical current heats a tungsten filament until it becomes white-hot, producing continuous-spectrum light (visible plus infrared) through thermal radiation.
The “halogen” advantage comes from the halogen cycle inside a quartz (high-silica) envelope: a small amount of halogen (often iodine/bromine) reacts with evaporated tungsten and helps transport it back toward the filament where it redeposits. This helps reduce envelope blackening and supports stable output—while also driving high operating temperatures and higher touch/heat risk during servicing.
Industry Update: ams OSRAM ENI Business → Ushio (Expected Close by End of March 2026)
Ushio and ams OSRAM announced an agreement for Ushio to acquire ams OSRAM’s Entertainment & Industry Lamps (ENI) business, with closing expected by the end of March 2026.
What this means for buyers: customers may encounter changes in labeling, packaging, part-number presentation, or channel availability across certain specialty lamp lines during the transition. To reduce risk, qualify replacements by 500W/120V, G9.5, and key dimensions (including 100.1mm length), and keep the manufacturer ordering code (1000287) in maintenance records.
Replacement & Handling Notes
  • Line-voltage lamp: this is a 120V type. Confirm fixture voltage and any required external dimming/controls before installation.
  • Socket compatibility: confirm G9.5 pin spacing and seating depth to avoid arcing, overheating, or poor contact.
  • Thermal management matters: a 500W halogen runs extremely hot—verify airflow/heat shielding and allow full cool-down before service.
  • Keep the envelope clean: fingerprints/residues can create localized hot spots. Use clean nitrile gloves and/or a lint-free wipe.
Cleanroom Considerations

Treat lamp changes as a controlled maintenance step: minimize packaging debris, use low-lint handling materials, and keep the lamp envelope free of oils and particulates prior to powering the system.

Stage clean nitrile gloves and a cleanroom-grade lint-free wipe during installation to reduce contamination risk and prevent residue transfer to nearby optics and air paths.

Need deeper specs or cross-references?
If you need additional information please try our SOSCleanroom specific AI ChatBot which draws from our extensive cleanroom specific libraries.
For mission-critical systems, confirm OEM requirements (voltage, wattage, base type, thermal limits, and physical dimensions) prior to use.