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Ushio EKE/HO 150W 21V MR16 halogen bulb with GX5.3 base

Ushio

Ushio EKE/HO 150W 21V Halogen Bulb GX5.3 3250K 200h

SKU CH-31AR-2SFCW

A 150 W, 21 V halogen lamp with a GX5.3 base, 3250 K colour temperature and 200-hour rated life

  • Power rating150
  • Color temperature3250K
  • Lifespan (hours)200
  • Product typeHalogen Bulbs
  • 150 W output for bright projection
  • 3250 K colour temperature gives warm white light
  • 200-hour rated life for planned maintenance
  • GX5.3 base fits compatible MR16 sockets
  • 21 V operation matches EKE/HO fixtures

Product Identity

The Ushio EKE/HO is a 150-watt halogen bulb operating at 21 volts with a GX5.3 base. It produces a 3250K colour temperature and is rated for 200 hours of life. This lamp suits specialised photo-therapy equipment that requires the HO reflector coating.

Thermals Noise Power

As a halogen source the bulb generates significant heat during its 200-hour rated life. The 150-watt draw at 21 volts defines its power consumption in normal operation. No acoustic noise is produced by the lamp itself.

Upgrade Context

This HO variant replaces only an existing EKE/HO lamp in systems designed for its 43-millimetre working distance and 330-to-490-nanometre spectral tuning. It cannot substitute a standard EKE lamp, which has a 44.5-millimetre working distance and different reflector characteristics.

How it compares

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

Price $22.99
Pricier than about 60% of the 1,791 comparable items (median $17.99).

Specifications

Product
Brand nameUshio
Product typeHalogen Bulbs
Power
Power rating150
More details
Color temperature3250K
Lifespan (hours)200

Questions about this item

How do I install the GX5.3 base bulb and what alignment step is often missed?

Align the pins with the socket and seat the bulb fully; the critical step is verifying the 43 mm working distance so the reflector focuses correctly in the optical path.

What maintenance or replacement will this 150 W halogen bulb need?

The lamp is rated for 200 hours of life; after that the filament will fail and the entire bulb must be replaced as halogen capsules are not serviceable.

What limit appears first during sustained operation of this photo-therapy lamp?

The 200-hour rated life is the primary limit; extended use also shifts output in the 330–490 nm spectral region as the modified reflector coating ages.

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