Philips 239426 EJM 21V 150W Halogen Projector Bulb

Philips 239426 EJM Halogen Projector Bulb

This Philips 239426 EJM halogen bulb operates at 21V and 150W, producing 1200 lumens at a 3400K colour temperature with a CRI of 100. It serves as a direct replacement lamp for specific 8mm movie projectors, dental photo curing units, fibre optic hand pieces and fibre optic illuminators. Compatible equipment includes the Kerr Command Light, Dental Kerr 15512 Command Light and Nord CPL/II systems.

Sustained Operation and Rated Lifetime

The bulb carries a rated life of 40 hours under continuous use, reflecting the typical endurance of high-intensity tungsten halogen capsules in projector and medical illumination roles. Output and colour consistency are maintained across this period before replacement is required. The 150W power draw remains stable during operation, so the host device must sustain the rated voltage without droop.

Application and Interface Constraints

The MR16 form factor and 21V rating limit use to fixtures designed for this exact voltage and base configuration; it cannot be used in mains-voltage sockets or higher-voltage projector housings. Cross-reference numbers such as Osram 54747, GE 29151, Ushio 1000301 and Philips 5995, 410634, 23942 confirm interchangeability only within the EJM 21V 150W specification. Buyers needing longer life, different voltage or higher lumen output must select a different lamp type.