{"id":28115,"date":"2021-12-09T09:58:29","date_gmt":"2021-12-09T15:58:29","guid":{"rendered":"https:\/\/jtechphotonics.com\/?post_type=product&p=28115"},"modified":"2025-10-07T13:37:17","modified_gmt":"2025-10-07T19:37:17","slug":"2-8w-spindle-mount-445nm-laser-head","status":"publish","type":"product","link":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head","title":{"rendered":"4.2W Spindle Mount 445nm Laser Head"},"content":{"rendered":"

This is just the laser head for the 4.2W Spindle Mount laser kit.\u00a0 Get this if you need to replace your laser after extended usage from your original kit, if you just want a spare, or upgrade to the spindle version in your original kit.<\/p>\n

This laser will work with the 2.5 amp laser driver<\/a>.<\/p>\n

Choose which lens to have included on the laser, either high resolution or high efficiency.\u00a0 We recommend using the high resolution lens.<\/p>\n

 <\/p>\n

Laser Overview<\/h2>\n

The laser diode in this kit is the strongest laser diode on the market.<\/p>\n

Absolute Maximum Ratings:<\/b><\/h4>\n\n\n\n\n\n\n\n
Item<\/td>\nAbsolute Maximum Ratings<\/td>\nUnit<\/td>\n<\/tr>\n
Forward Current (Tc = 25\u00b0C)<\/td>\n2.5<\/td>\nA<\/td>\n<\/tr>\n
Absolute max output optical power<\/td>\n>4.2<\/td>\nW<\/td>\n<\/tr>\n
Allowable Reverse Current (Tc = 25\u00b0C)<\/td>\n85<\/td>\nmA<\/td>\n<\/tr>\n
Operating Case Temperature<\/td>\n50<\/td>\n\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Electrical \/ Optical Characteristics:<\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Item<\/td>\nMin<\/td>\nTyp.<\/td>\nMax<\/td>\nUnit<\/td>\n<\/tr>\n
Optical Output Power @2.3 amps<\/td>\n<\/td>\n3.8<\/td>\n<\/td>\nW<\/td>\n<\/tr>\n
Optical Output Power @2.5 amps<\/td>\n<\/td>\n4.2<\/td>\n<\/td>\nW<\/td>\n<\/tr>\n
Dominant Wavelength<\/td>\n435<\/td>\n<\/td>\n455<\/td>\nnm<\/td>\n<\/tr>\n
Threshold Current<\/td>\n80<\/td>\n<\/td>\n220<\/td>\nmA<\/td>\n<\/tr>\n
Operating Voltage<\/td>\n3.7<\/td>\n<\/td>\n5.5<\/td>\nV<\/td>\n<\/tr>\n
Focused Spot Size<\/td>\n0.007<\/td>\n0.009<\/td>\n<\/td>\nInches<\/td>\n<\/tr>\n
Beam Divergence Full Angle (1\/e^2) \/\/<\/td>\n5<\/td>\n14<\/td>\n25<\/td>\ndeg.<\/td>\n<\/tr>\n
Beam Divergence Full Angle (1\/e^2) \u2013 Perp<\/td>\n30<\/td>\n44<\/td>\n50<\/td>\ndeg.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

-Above specifications are for reference purposes only and are subject to change.\u00a0 Figures in specifications may contain measurement errors.<\/p>\n

<\/b>-Note: The beam is slightly rectangular. Focused size specification is for the long axis.<\/em><\/h4>\n","protected":false},"excerpt":{"rendered":"

This is just the laser head for the 2.8W Spindle Mount laser kit.\u00a0 Get this if you need to replace your laser after extended usage from your original kit, if you just want a spare, or to upgrade to the spindle mount version.<\/p>\n

Choose which lens to have included on the laser, either high resolution or high efficiency.<\/p>\n

*Does not include the laser driver*.\u00a0 Please order the kit if you do not have a driver already.<\/p>\n","protected":false},"featured_media":40053,"comment_status":"open","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":100,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":""},"product_brand":[],"product_cat":[150],"product_tag":[],"class_list":["post-28115","product","type-product","status-publish","has-post-thumbnail","product_cat-uncategorized","first","outofstock","taxable","shipping-taxable","purchasable","product-type-variable","has-default-attributes"],"composite_virtual":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"bundled_by":[],"bundle_stock_status":"outofstock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"yoast_head":"\n4.2W Spindle Mount 445nm Laser Head - J Tech Photonics, Inc.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4.2W Spindle Mount 445nm Laser Head\" \/>\n<meta property=\"og:description\" content=\"This is just the laser head for the 2.8W Spindle Mount laser kit.\u00a0 Get this if you need to replace your laser after extended usage from your original kit, if you just want a spare, or to upgrade to the spindle mount version. Choose which lens to have included on the laser, either high resolution or high efficiency. *Does not include the laser driver*.\u00a0 Please order the kit if you do not have a driver already.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head\" \/>\n<meta property=\"og:site_name\" content=\"J Tech Photonics, Inc.\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-07T19:37:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2021\/12\/4-2W-Spindle-Laser-Head.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/?product=2-8w-spindle-mount-445nm-laser-head\",\"url\":\"https:\\\/\\\/jtechphotonics.com\\\/?product=2-8w-spindle-mount-445nm-laser-head\",\"name\":\"4.2W Spindle Mount 445nm Laser Head - J Tech Photonics, Inc.\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/?product=2-8w-spindle-mount-445nm-laser-head#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/?product=2-8w-spindle-mount-445nm-laser-head#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/jtechphotonics.com\\\/wp-content\\\/uploads\\\/2021\\\/12\\\/4-2W-Spindle-Laser-Head.jpg\",\"datePublished\":\"2021-12-09T15:58:29+00:00\",\"dateModified\":\"2025-10-07T19:37:17+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/?product=2-8w-spindle-mount-445nm-laser-head#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/jtechphotonics.com\\\/?product=2-8w-spindle-mount-445nm-laser-head\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/?product=2-8w-spindle-mount-445nm-laser-head#primaryimage\",\"url\":\"https:\\\/\\\/jtechphotonics.com\\\/wp-content\\\/uploads\\\/2021\\\/12\\\/4-2W-Spindle-Laser-Head.jpg\",\"contentUrl\":\"https:\\\/\\\/jtechphotonics.com\\\/wp-content\\\/uploads\\\/2021\\\/12\\\/4-2W-Spindle-Laser-Head.jpg\",\"width\":800,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/?product=2-8w-spindle-mount-445nm-laser-head#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/jtechphotonics.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/jtechphotonics.com\\\/?page_id=2192\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"4.2W Spindle Mount 445nm Laser Head\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/#website\",\"url\":\"https:\\\/\\\/jtechphotonics.com\\\/\",\"name\":\"J Tech Photonics, Inc.\",\"description\":\"CNC Laser Upgrade Kits\",\"publisher\":{\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/jtechphotonics.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/#organization\",\"name\":\"J Tech Photonics, Inc.\",\"url\":\"https:\\\/\\\/jtechphotonics.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/jtechphotonics.com\\\/wp-content\\\/uploads\\\/2018\\\/06\\\/J-Tech-Logo-TM-SQ-JPG.jpg\",\"contentUrl\":\"https:\\\/\\\/jtechphotonics.com\\\/wp-content\\\/uploads\\\/2018\\\/06\\\/J-Tech-Logo-TM-SQ-JPG.jpg\",\"width\":600,\"height\":600,\"caption\":\"J Tech Photonics, Inc.\"},\"image\":{\"@id\":\"https:\\\/\\\/jtechphotonics.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"4.2W Spindle Mount 445nm Laser Head - J Tech Photonics, Inc.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head","og_locale":"en_US","og_type":"article","og_title":"4.2W Spindle Mount 445nm Laser Head","og_description":"This is just the laser head for the 2.8W Spindle Mount laser kit.\u00a0 Get this if you need to replace your laser after extended usage from your original kit, if you just want a spare, or to upgrade to the spindle mount version. Choose which lens to have included on the laser, either high resolution or high efficiency. *Does not include the laser driver*.\u00a0 Please order the kit if you do not have a driver already.","og_url":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head","og_site_name":"J Tech Photonics, Inc.","article_modified_time":"2025-10-07T19:37:17+00:00","og_image":[{"width":800,"height":800,"url":"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2021\/12\/4-2W-Spindle-Laser-Head.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head","url":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head","name":"4.2W Spindle Mount 445nm Laser Head - J Tech Photonics, Inc.","isPartOf":{"@id":"https:\/\/jtechphotonics.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head#primaryimage"},"image":{"@id":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head#primaryimage"},"thumbnailUrl":"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2021\/12\/4-2W-Spindle-Laser-Head.jpg","datePublished":"2021-12-09T15:58:29+00:00","dateModified":"2025-10-07T19:37:17+00:00","breadcrumb":{"@id":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head#primaryimage","url":"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2021\/12\/4-2W-Spindle-Laser-Head.jpg","contentUrl":"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2021\/12\/4-2W-Spindle-Laser-Head.jpg","width":800,"height":800},{"@type":"BreadcrumbList","@id":"https:\/\/jtechphotonics.com\/?product=2-8w-spindle-mount-445nm-laser-head#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/jtechphotonics.com\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/jtechphotonics.com\/?page_id=2192"},{"@type":"ListItem","position":3,"name":"4.2W Spindle Mount 445nm Laser Head"}]},{"@type":"WebSite","@id":"https:\/\/jtechphotonics.com\/#website","url":"https:\/\/jtechphotonics.com\/","name":"J Tech Photonics, Inc.","description":"CNC Laser Upgrade Kits","publisher":{"@id":"https:\/\/jtechphotonics.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/jtechphotonics.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/jtechphotonics.com\/#organization","name":"J Tech Photonics, Inc.","url":"https:\/\/jtechphotonics.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jtechphotonics.com\/#\/schema\/logo\/image\/","url":"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2018\/06\/J-Tech-Logo-TM-SQ-JPG.jpg","contentUrl":"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2018\/06\/J-Tech-Logo-TM-SQ-JPG.jpg","width":600,"height":600,"caption":"J Tech Photonics, Inc."},"image":{"@id":"https:\/\/jtechphotonics.com\/#\/schema\/logo\/image\/"}}]}},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/jtechphotonics.com\/index.php?rest_route=\/wp\/v2\/product\/28115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtechphotonics.com\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/jtechphotonics.com\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/jtechphotonics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=28115"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtechphotonics.com\/index.php?rest_route=\/wp\/v2\/media\/40053"}],"wp:attachment":[{"href":"https:\/\/jtechphotonics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28115"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/jtechphotonics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=28115"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/jtechphotonics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=28115"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/jtechphotonics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=28115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}