350W metal halide lamp E39 — MS350W ED120 pulse start

The Plusrite MS350W is a 350W metal halide lamp E39 in an ED120 elliptical envelope, designed as a pulse-start HID replacement for commercial and industrial fixtures. It operates at 4000K (cool white) with a clear, uncoated outer envelope for maximum lumen output.

Specifications

• Wattage: 350W
• Base: E39 (mogul screw)
• Envelope: ED120 (elliptical, clear)
• Colour temperature: 4000K (4K, cool white)
• Ignition: Pulse start (PS)
• Burn position: Universal (U)
• Standard: US (suitable for compatible Australian fixtures)
• Product code: MHPS/0005

Common applications for this 350W metal halide lamp E39

This lamp is used as a like-for-like replacement bulb in:

• High-bay industrial fixtures
• Sports and arena floodlighting
• Warehouse and factory lighting
• Car park and forecourt fittings
• Commercial outdoor area lights

Pulse start vs probe start metal halide

Pulse-start metal halide lamps offer faster warm-up, longer service life and better lumen maintenance than older probe-start designs. They require a compatible pulse-start ballast. If you are upgrading from probe start, confirm ballast compatibility before installation. Read more on the underlying metal halide lamp technology.

LED replacement options

If you are considering converting from HID to LED, see our metal halide LED replacement bulb range for direct retrofit options. For other wattages and bases, browse the full standard metal halide lamp catalogue.

Warranty and ordering

Warranty: This product is supported by a 1 year warranty from invoice date. Contact Plusrite for trade pricing on bulk orders or to confirm fixture compatibility.

Choosing the right 350W metal halide lamp E39

When specifying a 350W metal halide lamp E39, three details matter most: ignition method, envelope shape and colour temperature. Pulse-start is now the dominant standard for new commercial installations, and the ED120 outer envelope is the common form factor for open and enclosed luminaires. The MS350W ships at 4000K, which is a balanced cool-white output that suits most industrial, sports and commercial applications without the harsh blue cast of higher Kelvin variants.

The E39 mogul base fits the majority of commercial HID fixtures originally designed for the US market, and is widely compatible with Australian-specified industrial lights as well. If your fixture uses an E40 mogul base instead, browse our complete metal halide lamp catalogue for the right alternative.

Lumen output and life expectancy

A new 350W metal halide lamp delivers approximately 30,000 to 33,000 lumens at initial output, with rated life around 15,000 to 20,000 hours under normal operation. Pulse-start technology improves end-of-life lumen maintenance compared to the older probe-start designs, so usable output stays closer to the initial rating for longer. For best results, run lamps in the orientation specified by the fixture manufacturer where possible, even though the U (universal) burn position rating allows flexibility.

Disposal and handling

Metal halide lamps contain small quantities of mercury and should be disposed of through a licensed lamp recycling service rather than general waste. In Victoria, FluoroCycle and licensed e-waste collection points accept HID lamps. Always allow lamps to cool fully before handling, and replace any lamp that has been operating beyond 12,000 hours regardless of whether it has failed, as end-of-life metal halide lamps can rupture.

Australian stock and trade pricing

Plusrite holds the MS350W and other common 350W metal halide lamp E39 variants at our Carrum Downs warehouse for fast Australian despatch. Trade pricing is available on volume orders, and our team can confirm fixture compatibility before you order if you supply the original luminaire model number.

Pulse-start ballast compatibility

The MS350W is engineered for pulse-start ballasts and will not strike reliably on probe-start gear. Most commercial fixtures supplied in Australia over the last fifteen years already use pulse-start technology, but if your luminaire predates that you may need to swap the ballast and ignitor as part of the lamp change. Plusrite can supply pulse-start ballast assemblies on request. Drop us a note via the contact page with the fixture make and model and we will confirm the right ballast spec for your installation.