Product Overview

Sylvania 69228 HBO 350 W/S 350W 68V HBO Mercury Short-Arc (Microlithography) Lamp
The Sylvania 69228 (HBO 350 W/S) is a 350W mercury short-arc lamp operating at 68V, DC, 4700 mW/sr, with a rated life of 600 hours. This is a professional specialty lamp for hbo mercury short-arc (microlithography) fixtures and equipment – it is not a general-purpose replacement bulb. Contains mercury. Not for sale or shipment in CA, CO, HI, ME, MN, OR, RI, VT, and must be recycled per state regulations – see lamprecycle.org.
Wattage 350W HBO Microlithography |
Voltage 68V DC |
Radiant Intensity 4700 mW/sr Headline Spec |
Avg Rated Life 600 Hours |
Base SFcY10-4 Socket |
Technical Specifications
| Sylvania Order Code | 69228 |
| Ordering Abbreviation | HBO 350 W/S |
| Lamp Technology | HBO Mercury Short-Arc (Microlithography) |
| Wattage | 350W |
| Voltage | 68V |
| Type of Current | DC |
| Current | 5.15A |
| Radiant Intensity (350-450nm) | 4700 mW/sr |
| Avg Rated Life (hrs) | 600 hours |
| Operating Position | down Vertical, anode |
| Base | SFcY10-4 |
| Cooling | Convection |
| Mercury Content | Contains mercury |
Product Overview
The Sylvania 69228 is a mercury short-arc lamp in the HBO Mercury Short-Arc (Microlithography) family, built for professional applications where this exact ordering code, wattage, and voltage are specified by the fixture or equipment manufacturer. Mercury short-arc lamps of this type are precision components – the arc gap, base configuration, and operating position requirements are engineered for a specific fixture design and are not generally interchangeable with other wattages or ordering codes in the same family.
Operating position for this lamp is specified as down Vertical, anode. Rated for 600 hours of average life, this lamp should only be installed in equipment that explicitly calls for the Sylvania 69228 or its HBO 350 W/S ordering abbreviation.
Compatible Applications
- Professional fixtures and equipment specified for the Sylvania 69228 (HBO 350 W/S)
- HBO Mercury Short-Arc (Microlithography) applications requiring 350W at 68V
- Replacement in existing installations that call for this exact ordering code
Before Ordering – Verify
- Confirm your equipment specifies the Sylvania 69228, ordering abbreviation HBO 350 W/S
- Confirm supply voltage is 68V and current type (DC) match your equipment
- Confirm operating position is rated for down Vertical, anode – short-arc and metal halide lamps are position-sensitive and can fail prematurely or unsafely if mounted incorrectly
- Confirm the base connection (SFcY10-4) matches your fixture's socket
Safety and Handling Guidelines
- This is a high-pressure arc lamp. It can shatter violently if mishandled, dropped, or operated outside its rated fixture – always use eye and face protection and follow the fixture manufacturer's handling procedures
- Only operate this lamp inside an enclosed fixture designed for it; never operate a short-arc lamp in the open
- Allow the lamp to cool completely before handling or relamping
- Avoid touching the bulb envelope with bare skin; oils can shorten lamp life and cause premature failure – handle with a clean cloth or gloves
- Do not exceed the equipment's rated maximum wattage
- Dispose of in accordance with local and state mercury-lamp regulations
Compliance
- Contains mercury – not for sale or shipment in CA, CO, HI, ME, MN, OR, RI, VT; recycle per lamprecycle.org
- Use only in equipment designed for this lamp type and rating
Ordering Information
- Sylvania Order Code: 69228
- Ordering Abbreviation: HBO 350 W/S
- Manufacturer Part Number: HBO350WS-69228
- UPC: 046135692284
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.