Check the listing for details. HP CH231A CH-231A Replacement UV Curing Lamp Bulb- HP DesignJet Digital Printers. Condition: New. Listed at 189.00 USD. HP CH231A CH-231A Compatible Replacement UV Curing Lamp for HP DesignJet Digital PrintersThis is a Caprock brand lamp that is 100% compatible with the the HP CH-231A CH-231-A lamp, but is not made by HP. It is used in flatbed digital printers for curing ink. The lamp measures a bit over four inches, with flat pinched seals and is spring mounted into the machine with R7S connectors. This is a high-quality German-made replacement, not a low quality knock-off. Alternate part numbers are 80044043, UVPS-4 and CH154-67091. The last number is a kit that includes the lamp and other items, we sell the lamp by itself. The CH-231A is used in these and other HP model numbers:DesignJet 45000DesignJet 45500DesignJet H35000H35100H35500H45000H45100H45500H45550FB500 (CQ114A)FB-500 (CQ114A)FB550 (L1Q41A)FB-550 (L1Q41A)FB700 (CQ115A)FB-700 (CQ115A)FB750 (L1Q42A)FB-750 (L1Q42A)FB910FB-910FB950FB-950US buyers get FREE SHIPPING to ANY point in the US. Foreign buyers please request shipping charges prior to bidding. Payment must be received within five days to avoid negative feedback.