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Ushio USH-102DH 100W mercury vapor lamp, clear glass tubular bulb

Ushio

Ushio 5000274 USH-102DH Mercury Vapor Standard Bulb 100W

SKU CH-WH2T-WQRNA

A 100 W mercury-vapor lamp delivering 2500 lumens with a 200-hour rated life

  • Power rating100
  • Light output2500
  • Lifespan (hours)200
  • Product typeHigh Intensity Discharge
  • High-intensity discharge design delivers 2500 lumens
  • 100-watt mercury vapor lamp provides bright illumination
  • Rated 200-hour lifespan supports extended operation
  • Ushio manufacturing ensures reliable performance consistency
  • Standard bulb format fits compatible fixtures directly

Mercury Vapor 100W Lamp

The Ushio USH-102DH is a 100-watt mercury vapor discharge lamp producing 2500 lumens. It suits projection or specialist lighting fixtures that require this specific burner type. Buyers needing higher lumen output or longer service intervals should consider alternative lamp technologies.

Sustained Output Stability

Rated life is 200 hours under standard operating conditions. Light output and colour consistency are maintained across this period when the lamp runs at its designed 100 watts. Frequent striking cycles or inadequate cooling will reduce the achievable runtime below the rated figure.

Fixture And Power Constraints

The lamp must be operated on a compatible mercury vapor ballast matched to 100 watts; direct mains connection will destroy the burner. Enclosed fixtures require adequate ventilation to prevent envelope overheating. Buyers without a verified ballast and fixture combination cannot use this lamp safely.

How it compares

Measured against everything we stock in General-Purpose & Specialty Bulbs, at today’s prices. Recalculated every night.

Price $149.99
Pricier than about 90% of the 1,791 comparable items (median $17.99).

Specifications

Product
Brand nameUshio
Product typeHigh Intensity Discharge
Display
Light output2500
Power
Power rating100
More details
Lifespan (hours)200

Questions about this item

How much heat and power does the 100 W mercury-vapor bulb produce when running continuously?

The lamp draws 100 W and has a rated life of 200 hours, so it will generate typical HID heat levels during extended use.

What fixture and ballast are required to operate the USH-102DH bulb?

It requires a fixture that accepts a high-intensity discharge lamp and a ballast specifically rated for 100 W mercury-vapor operation.

Will the 2500-lumen output work alongside older lower-wattage mercury-vapor lamps in the same circuit?

Each 100 W lamp needs its own dedicated ballast; mixing wattages on one ballast is not supported.

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