{"id":30396,"date":"2026-08-26T19:24:08","date_gmt":"2026-08-26T17:24:08","guid":{"rendered":"https:\/\/delta.screenup.com\/produit\/dim-and-pulse-options-for-the-sfa\/"},"modified":"2026-08-26T19:24:09","modified_gmt":"2026-08-26T17:24:09","slug":"dim-and-pulse-options-for-the-sfa","status":"publish","type":"product","link":"https:\/\/delta.screenup.com\/en\/produit\/dim-and-pulse-options-for-the-sfa\/","title":{"rendered":"DIM and PULSE options for the SFA"},"content":{"rendered":"\n<iframe loading=\"lazy\" title=\"DIM and PULSE options for the NIGHTSEA Stereo Microscope Fluorescence Adapter\" width=\"1080\" height=\"608\" src=\"https:\/\/www.youtube.com\/embed\/1Z2ySfTln3I?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>_x000D_\n_x000D_\n<span style=\"font-size: 14pt;\"><strong>Details \u2013 DIM Option<\/strong><\/span>_x000D_\n<table style=\"width: 466px; height: 193px;\">_x000D_\n<tbody>_x000D_\n<tr style=\"height: 157px;\">_x000D_\n<td style=\"width: 209.47px; height: 157px; text-align: center;\"><a href=\"https:\/\/www.deltamicroscopies.com\/wp-content\/uploads\/2019\/05\/dim-detail1.jpg\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-228752\" src=\"https:\/\/www.deltamicroscopies.com\/wp-content\/uploads\/2019\/05\/dim-detail1.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/td>_x000D_\n<td style=\"width: 240.53px; height: 157px; text-align: center;\"><a href=\"https:\/\/www.deltamicroscopies.com\/wp-content\/uploads\/2019\/05\/shark-dim-composite2.jpg\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-228751\" src=\"https:\/\/www.deltamicroscopies.com\/wp-content\/uploads\/2019\/05\/shark-dim-composite2.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/td>_x000D_\n<\/tr>_x000D_\n<tr style=\"height: 36px;\">_x000D_\n<td style=\"width: 209.47px; height: 36px; text-align: center;\">Dimmer switch option on SFA<\/td>_x000D_\n<td style=\"width: 240.53px; height: 36px; text-align: center;\">Target at max and min excitation<\/td>_x000D_\n<\/tr>_x000D_\n<\/tbody>_x000D_\n<\/table>_x000D_\nThe DIM option adds a combined switch and dimmer control. When you first turn the unit on it is at full power. As you rotate the switch the intensity decreases, reaching ~30% at the minimum setting. You have finer control in the brighter portion of the adjustment range. An intensity indicator (1 \u2013 10) makes it easy to record and repeat preferred settings._x000D_\n_x000D_\nWhy might you want to use a dimming control? <a href=\"https:\/\/www.nightsea.com\/articles\/why-fluorescence-dimming\/\">Read the article.<\/a>_x000D_\n_x000D_\n\u00a0_x000D_\n_x000D_\n<span style=\"font-size: 14pt;\"><strong>Details \u2013 PULSE Option<\/strong><\/span>_x000D_\n<table style=\"width: 457px; height: 169px;\">_x000D_\n<tbody>_x000D_\n<tr style=\"height: 132px;\">_x000D_\n<td style=\"width: 211.48px; height: 132px; text-align: center;\"><a href=\"https:\/\/www.deltamicroscopies.com\/wp-content\/uploads\/2019\/05\/pulse-no-connector1.jpg\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-228754\" src=\"https:\/\/www.deltamicroscopies.com\/wp-content\/uploads\/2019\/05\/pulse-no-connector1.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/td>_x000D_\n<td style=\"width: 229.52px; height: 132px; text-align: center;\"><a href=\"https:\/\/www.deltamicroscopies.com\/wp-content\/uploads\/2019\/05\/pulse-connector2.jpg\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-228753\" src=\"https:\/\/www.deltamicroscopies.com\/wp-content\/uploads\/2019\/05\/pulse-connector2.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/td>_x000D_\n<\/tr>_x000D_\n<\/tbody>_x000D_\n<\/table>_x000D_\nThe PULSE option adds a BNC connector on the rear of the base that accepts a user-supplied voltage input from a computer, function generator, or the like to turn the light on and off. Some possible applications:_x000D_\n&#8211; External control for precise illumination timing for photoactivation, behavioral experiments, \u2026_x000D_\n&#8211; Light dimming by PWM (pulse width modulation) \u2013 <a href=\"https:\/\/www.nightsea.com\/articles\/pwm-led-dimming\/\">read more<\/a>_x000D_\n&#8211; Add a footswitch for hands-free operation \u2013 contact NIGHTSEA for details_x000D_\n_x000D_\n<strong>Specifications:<\/strong>_x000D_\n&#8211; Voltage level: 2.8 \u2013 6.0 VDC for ON, <0.6VDC OFF_x000D_\n- Maximum input frequency: 200Hz_x000D_\n- BNC cable not included\n","protected":false},"excerpt":{"rendered":"<p>We offer two optional enhancements for the Model SFA Stereo Microscope Fluorescence Adapter. These are available either as a retrofit or as an add-on to a new system purchase._x000D_<br \/>\n_x000D_<br \/>\n&#8211; <strong>DIM<\/strong> \u2013 Replaces the OFF\/ON switch with an OFF\/ON\/DIM switch. This enables you to vary the excitation intensity._x000D_<br \/>\n_x000D_<br \/>\n&#8211;<strong> PULSE<\/strong> \u2013 Adds a BNC connector on the rear of the light base that accepts a voltage signal to control the excitation source ON\/OFF._x000D_<br \/>\n_x000D_<br \/>\nNote \u2013 only one or the other of the options can be added to a particular base unit.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[]},"product_brand":[1894],"product_cat":[1379,1891,1892,1903],"product_tag":[],"class_list":["post-30396","product","type-product","status-publish","product_brand-nightsea","product_cat-microscopie-optique","product_cat-nightsea","product_cat-nightsea-fluorescence","product_cat-nightsea-accessories","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/delta.screenup.com\/en\/wp-json\/wp\/v2\/product\/30396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/delta.screenup.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/delta.screenup.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/delta.screenup.com\/en\/wp-json\/wp\/v2\/media?parent=30396"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/delta.screenup.com\/en\/wp-json\/wp\/v2\/product_brand?post=30396"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/delta.screenup.com\/en\/wp-json\/wp\/v2\/product_cat?post=30396"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/delta.screenup.com\/en\/wp-json\/wp\/v2\/product_tag?post=30396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}