Nobo Quantum 2521 Overhead Projector Twin Lamp 250W Grey

The projector. Our title previously read Overhead Projector Lamp, which was wrong, and it has been corrected. Nobo's overhead projection brochure lists product code 1900563 as the Quantum 2521 with a chassis size and a weight, which are a machine's figures. The bulb is a separate part at a very different price.

Two lamps rather than one. Two Australasian trade records describe the 2521 as a two by 250W lamp machine, and Nobo lists the 2521 in the tier above the single lamp 2511. The practical benefit is that a lamp failing part way through a session does not end the session. Nobo does not publish a changeover mechanism description that we could reach, so we describe the configuration and not how the switch is operated.

Code 33730957, a 24V 250W lamp. Nobo's own brochure lists that code against the Quantum 2521, the 2523, the 2523T and the 4023. It is the first item in the related row on this page. Do not fit a 240V 250W bulb in place of it, because the lamp voltage and the mains voltage are different figures.

Not really, and we would rather say so. An overhead projector shows acetate transparencies and has been displaced by data projectors and large format displays. The sensible buyer is maintaining equipment that is already installed, or working from acetates that already exist. For a new room, specify something else.

Lamp count and price, and the spare part situation. The 2521 is a twin lamp machine and Nobo publishes a replacement lamp code for it. The 2511 is a single element lens unit and Nobo publishes no replacement lamp code for it at all. The two codes differ by one digit, so check which unit you actually have before ordering either the machine or a bulb.

A carton weight, a carton quantity and a light output figure. The 8.15kg in Nobo's brochure is a unit weight rather than a packed one, so we have recorded it in the specifications and left the freight weight unset rather than under declare it. Nobo's brochure gives a minimum lamp life for its Quantum lamps but publishes none against the individual lamp part code, so we quote none.

Delivery time depends on your location, the size of your order, and the shipping option selected at checkout. For in-stock items, standard metro delivery in QLD, NSW and VIC is usually 1 to 7 business days. South Australia, Tasmania, Western Australia and the Northern Territory are generally 3 to 12 business days. Express delivery for eligible parcels under 3kg is usually 1 to 4 business days in QLD, NSW, ACT and VIC. Delivery estimates apply to in-stock items only and may vary due to carrier conditions or delays.

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