{"product_id":"starfield-optics-newtonian-secondary-mirror-dew-heater-large-dh-sl","title":"Starfield Optics Newtonian Secondary Mirror Dew Heater - Large - DH-SL","description":"\u003cp\u003eKeep dew from forming on your Newtonian or Dobsonian telescope's secondary mirror with this compact, low-power heater from Starfield Optics. Designed to wrap securely around a \u003cstrong\u003e2-inch secondary mirror stalk\u003c\/strong\u003e, it helps prevent condensation without placing a heating pad directly behind the mirror.\u003c\/p\u003e\u003ch3\u003eHighlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLarge version designed for Newtonian secondary mirror stalks measuring approximately 2 inches\u003c\/li\u003e\n\u003cli\u003eOperates on 12V DC and consumes just 3W (approximately 0.25A)\u003c\/li\u003e\n\u003cli\u003eIncludes a 2-metre silicone power cable\u003c\/li\u003e\n\u003cli\u003eWraparound construction for straightforward installation\u003c\/li\u003e\n\u003cli\u003eCan operate from a suitable 12V supply without a separate dew controller; compatible with popular controllers according to Starfield Optics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eMeasure the diameter and available clearance of the secondary mirror stalk or holder before purchasing. The 2-inch measurement refers to the stalk, not the telescope aperture or the secondary mirror's optical diameter. Check power connection and cable-routing requirements for your setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e DH-SL\u003c\/p\u003e","brand":"Starfield Optics","offers":[{"title":"Default Title","offer_id":50919691944155,"sku":"DH-SL","price":69.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0224\/6770\/6960\/files\/starfield-optics-accessories-starfield-optics-newtonian-secondary-mirror-dew-heater-large-dh-sl-1264249050.jpg?v=1792795390","url":"https:\/\/telescopescanada.ca\/products\/starfield-optics-newtonian-secondary-mirror-dew-heater-large-dh-sl","provider":"Telescopes Canada","version":"1.0","type":"link"}