{"product_id":"5j-j4d05-001-projector-lamp","title":"5J.J4D05.001 bare projector lamp","description":"\u003cp\u003eAt 400 watts, the 5J.J4D05.001 is one of the higher-output lamps in this range, built specifically for the BenQ SP891 and rated for 1500 hours. It's sold bare, without housing, so it fits into the cage already inside your projector.\u003c\/p\u003e\u003cp\u003eBecause this lamp runs hotter than lower-wattage models, make sure your SP891's housing and ventilation are clear of dust before fitting a replacement, as that has a direct bearing on how long the new bulb lasts. This is the only code the SP891 uses, so there's no alternate part to check against.\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWattage\u003c\/strong\u003e — 400 W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated life\u003c\/strong\u003e — 1,500 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e — Bare Projector Lamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU\u003c\/strong\u003e — LA-08432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility\u003c\/strong\u003e — 1 projector models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhy is this lamp rated for fewer hours than some others?\u003c\/strong\u003e\u003cbr\u003eHigher-wattage lamps like this 400-watt unit generally have a shorter rated life than lower-output ones, and 1500 hours is the figure published for the SP891.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the SP891 come in a version that needs a different lamp?\u003c\/strong\u003e\u003cbr\u003eNo, every SP891 uses the 5J.J4D05.001, so there's no variant to check for based on region or configuration, and this single code covers the whole model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat affects how long this lamp actually lasts once fitted?\u003c\/strong\u003e\u003cbr\u003eRunning the projector in a dusty environment, poor ventilation around the housing, and frequent power cycling can all shorten a lamp's life relative to its rated hours.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a housed module version of this lamp available?\u003c\/strong\u003e\u003cbr\u003eNot in this listing, this is the bare-bulb form only, intended for fitting into an existing SP891 housing that's still in good condition rather than replacing the housing too.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's the safest way to handle this bulb during fitting?\u003c\/strong\u003e\u003cbr\u003eLet the projector cool completely, then lift the lamp by its base rather than the glass, since skin oils on the envelope can cause uneven heating in use.\u003c\/p\u003e","brand":"Lamps Authority","offers":[{"title":"Default Title","offer_id":48182627369196,"sku":"LA-08432","price":270.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/5535\/8700\/files\/generic-bigbulb.png?v=1786970157","url":"https:\/\/www.lampsauthority.com\/products\/5j-j4d05-001-projector-lamp","provider":"Lamps Authority","version":"1.0","type":"link"}