Nobo Replacement Overhead Projector Lamp 24V 250W A-EHJ Clear

Four, and only four on Nobo's published list. Nobo's overhead projection brochure lists part code 33730957 against the Quantum 2521, the Quantum 2523, the Quantum 2523T and the Quantum 4023. We are not extending that list, because a lamp is an electrical part and a plausible guess is not a fit.

Not confirmed, and we will not say yes. The 2511 does not appear in Nobo's lamp table at all, so there is no published code for that machine and no published lamp voltage either. The 2511 and the 2521 differ by one digit and that is exactly how the wrong part gets ordered. Read the code on the bulb you are taking out, or ask us and we will put it to ACCO.

24V. The projector runs from a 240V mains supply and steps it down, so the bulb itself is a low voltage part. A 240V 250W lamp and a 24V 250W lamp look alike and are not interchangeable, and fitting the wrong one is an electrical risk. The Quantum 4013M is the machine in the range that genuinely takes a 240V lamp, and it takes a 400W one on a different code.

Nobo publishes no lamp life figure against part code 33730957, so we do not quote one. Nobo's brochure does state a minimum lamp life for its Quantum lamps as a range statement, but that is not published against this part number, and passing a range figure off as a rating for one code is the kind of thing that turns into an argument later. Keep a spare instead.

One lamp. The trade record for this code lists a pack size of one, so a machine with two lamp holders needs two of these. Nothing else is included, and no tool is supplied.

Only to keep an installed machine going, which is a legitimate reason. Overhead projection has been displaced by data projectors and large format displays, and we are not going to pretend this part suits a modern classroom. If the machine is still in service and still earning its keep, a spare lamp is cheap insurance. If the room is being refitted, this is not the shelf to buy from.

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