Product Overview

Ushio 1001289 QIH120-375T/E – 375W 120V Quartz Infrared Heater Lamp
The Ushio 1001289 QIH120-375T/E is a 375W, 120V quartz infrared heater (QIH) lamp, built with translucent quartz and a r7s base (contact type). It has a Maximum Overall Length of 219.0mm and a 128mm lighted (filament) length, with 215mm contact-to-contact spacing. Rated color temperature is 2500K and average life is 6000 hours. Physically it is a straight lamp with contact-to-contact (L1) base spacing, R7s-style contact base. It cross-references to Ushio's alternate designation QH375T3/7.
Wattage 375W 120V | MOL 219.0mm Max Overall Length | Color Temp 2500K | Avg Life 6000 hrs | Base E R7s Base (Contact Type) |
Technical Specifications
| Lamp Family | Quartz Infrared Heater (QIH) |
| Ushio Product Code | QIH120-375T/E |
| Wattage | 375W |
| Voltage | 120V |
| Maximum Overall Length (MOL) | 219.0mm |
| Lighted Length (LL, filament, avg.) | 128mm |
| Contact-to-Contact Length (L1) | 215mm |
| Color Temperature | 2500K |
| Average Rated Life | 6000 hours |
| Glass Type | Translucent Quartz |
| Jacket Type | Clear (no jacket) |
| Burning Position | Horizontal (or universal, per manufacturer rating) |
| Reflector | None (bare quartz, 360° radiation) |
| Base Type | R7s Base (Contact Type) |
| Configuration (Figure Reference) | Straight lamp with contact-to-contact (l1) base spacing, r7s-style contact base |
| Alternate / Cross-Reference Designation | QH375T3/7 |
| Country of Manufacture | USA |
| Certification | ISO 9001 Certified manufacturing |
| Order Code | 1001289 |
Product Overview
Quartz infrared heater (QIH) lamps provide clean, instantaneous, precisely controlled radiant heat for applications such as baking, drying, curing, dehydrating, warming of foods, and general area warming. Unlike convection or forced-air heating, a QIH lamp reaches full output almost immediately and can be cycled on/off or dimmed for tight process control, without the lag of a heated air mass.
This 1001289 is rated 375W at 120V with a 219.0mm maximum overall length and a 128mm lighted length. It uses translucent quartz. The lamp terminates in a r7s base (contact type).
At a rated 6000-hour average life and 2500K color temperature, this lamp fits process heating, scientific/medical, and semiconductor applications where Ushio's QIH lamps are commonly specified for their precise, controllable, instant-on heat output.
Compatible Applications
- Industrial process heating: baking, drying, curing, dehydrating
- Food warming and general area warming
- Scientific and medical applications: infant environment warming, heat therapy, spa/sauna heating, laboratory environmental control
- Semiconductor manufacturing: precise temperature and heating-zone control
Before Ordering – Verify
- Confirm voltage matches 120V — QIH lamps are voltage-specific across this family (104V through 600V); a lamp built for one voltage is not interchangeable with another
- Confirm base type (R7s Base (Contact Type)) against the fixture/holder — the seven QIH base types (metal clip, R7s contact, metal sleeve, lead wire, round or flat ceramic) are not interchangeable
- Confirm physical fit: MOL 219.0mm, contact-to-contact 215mm against the available socket-to-socket or clip-to-clip distance in the fixture
Safety and Handling Guidelines
- Quartz infrared heater lamps generate significant heat and infrared radiation — do not touch the lamp during or immediately after operation
- De-energize the fixture and allow the lamp to cool fully before installation, removal, or servicing
- Do not touch the quartz envelope with bare skin during installation; oils from skin contact can cause the quartz to fail prematurely under heat — handle with clean gloves or a cloth
- Install and operate only in fixtures rated for this lamp's wattage and voltage, with adequate clearance from combustible materials
- Follow the manufacturer's specified burning position (horizontal, or per fixture design) — operating outside the rated position can shorten lamp life or cause failure
- Follow all applicable national and local electrical and fire codes for infrared heating installations
Compliance
- ISO 9001 Certified manufacturing
- Manufactured in the USA
- Specifications per Ushio's QIH product documentation; subject to change without notice by the manufacturer
Ordering Information
- Order Code: 1001289
- Ushio Product Code: QIH120-375T/E
- Wattage / Voltage: 375W / 120V
- Alternate / cross-reference designation: QH375T3/7
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.