Optoma HD21 Compatible Replacement Projector LampGet your Optoma HD21 back up and running for less with this cost effective aftermarket compatible replacement lamp and housing. Rated at 230 watts, it's built to match the brightness and fit of the factory lamp and arrives fully assembled in a ready to install housing just swap out the spent unit, no tools or bulb handling needed. A smart budget choice for home theater and gaming. Fits: Optoma HD21.

Upgrade to the Heil Quaker/ICP 202301400066 Terminal Block Multiplex to improve reliability

and extend the life of your unit

PT-D4000 Panasonic Twin-Pack Projector Lamp Replacement Projector Lamp Assembly with High Quality Genuine Original Ushio Bulb Inside

Built for durability in demanding boiler-room environments

Dimensions: 3-1/2 in W × 2-3/8 in D × 4-3/8 in H

Compatibility: Works with L7224 and L7248 Oil Electronic Aquastat Controllers

ensuring a prompt response to heat buildup

Regulator type: Hi-Low adjustable output

Chassis-based design for straightforward installation

Flow control: Equal percentage low flow for precise

the P545NCB-21C helps reduce maintenance intervals

Precise temperature control with an output range of 70-120°F supports comfortable showers