Same quartz, same gas, same geometry — so where do compatible lamps differ, and how do you protect yourself?
A compatible lamp is built to the same mechanical drawing: wattage, overall length, light-centre length, bulb diameter, base and cable. If those match the original, it mounts and focuses the same way. Quartz envelopes, tungsten electrodes and xenon fill are industry-standard materials.
Electrode metallurgy and shape (doped tungsten alloys, tip geometry), fill pressure, the quality of the quartz-to-metal seal, and above all the factory's burn-in and quality control. These decide life, arc stability and the failure rate, not the brand printed on the base.
Ask for the dimensional drawing and confirm it against the original. Ask for the warranty hours in writing and the pro-rata terms. Ask what the factory's burn-in test is (hours and current) and whether every lamp is tested or a sample. Ask for a photo of the actual lamp and its label before shipment. Ask how a claim is handled: photos and counter reading, or return of the lamp.
Buy one or two lamps for a screen you can watch. Log hours, strikes and any restrike problems. Compare light output at install and after 500 hours against the original. If they hold up, scale the order. This is how every large exhibitor qualifies a lamp source, and a serious supplier will expect it.
We quote against the full part number and your equipment model, confirm the fit on the drawing before quoting, state warranty hours on every quote, and send photos of the actual lamp before it ships. If a lamp will not fit your lamphouse, we say so instead of shipping it.
Send the part number or a photo of the label and your equipment model. We confirm fit and quote within 24 hours.