{"product_id":"5811100235-projector-lamp","title":"5811100235 Bare Projector Lamp","description":"\u003cp\u003eThis bare 220-watt bulb, listed as 5811100235, is made for Optoma's older EP1691i, EP7155e, EP7155i, EW1691e, EW7155e, EX7155e and the EzPro-branded 1691i and 7155i models, rated for 2,000 hours. These projectors take a bulb-only replacement rather than a full module, so this part fits into your existing housing.\u003c\/p\u003e\u003cp\u003eOptoma has used several codes for this same bulb over the years: 5811100908-S, BL-FS220B, and the German-market DE.5811100235 and DE.5811100908 references. Because it is a bare lamp, you will need to transfer it into your current housing carefully, taking care with the fragile glass and the electrical contacts at each end.\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWattage\u003c\/strong\u003e — 220 W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated life\u003c\/strong\u003e — 2,000 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-09400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility\u003c\/strong\u003e — 10 projector models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhy does this bulb have a German-prefixed code like DE.5811100235?\u003c\/strong\u003e\u003cbr\u003eOptoma issued regional part number variants for some markets, and the DE-prefixed codes are simply the German-market listing of the same bulb sold elsewhere as 5811100235 or BL-FS220B - they are not a different product.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a bare bulb or does it include the housing?\u003c\/strong\u003e\u003cbr\u003eIt is a bare bulb only. Your existing EP or EzPro housing and cage are reused, so you will need to remove the old bulb from that housing and fit this one into it, rather than swapping the whole assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between EP1691i and EzPro 1691i?\u003c\/strong\u003e\u003cbr\u003eEzPro was Optoma's branding for this projector in some markets, while EP1691i is the same model under Optoma's standard naming, and both use this bulb, along with the closely related EP7155e, EP7155i and EzPro 7155i.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow careful do I need to be handling a bare bulb like this?\u003c\/strong\u003e\u003cbr\u003eVery - avoid touching the glass envelope directly, as skin oils can cause it to fail early once heated, and let any old bulb cool fully before removing it. Handle it by its base wherever possible and dispose of a spent bulb according to your local rules for projector lamps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 5811100908-S replace 5811100235, or are they interchangeable?\u003c\/strong\u003e\u003cbr\u003eThey are interchangeable - both codes, along with BL-FS220B, describe this same 220-watt bulb, so whichever one appears on your old lamp or in your projector's documentation, this is the correct replacement.\u003c\/p\u003e","brand":"Lamps Authority","offers":[{"title":"Default Title","offer_id":48182662070508,"sku":"LA-09400","price":117.86,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/5535\/8700\/files\/27259-lg.png?v=1786958935","url":"https:\/\/www.lampsauthority.com\/products\/5811100235-projector-lamp","provider":"Lamps Authority","version":"1.0","type":"link"}