LSE Lighting compatible UV Lamp 20W for EL411L EL411A Water System<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Bulb Type: Ultraviolet Lamps for Residential UV Water Disinfection Systems </span></li><li><span class="a-list-item"> Wattage: 20W， Base Type: 4pin (4pins on ONE END) </span></li><li><span class="a-list-item"> Overall Length: 18" </span></li><li><span class="a-list-item"> This UV replacement lamp by (LSE Lighting) brand is 100% compatible for use with Excelight EL411L Model water system. </span></li><li><span class="a-list-item"> All lamps listed are compatible brand (LSE Lighting) UV products. We do not sell Excelight brand lamps. All Excelight brand names， trademarks and logos are property of Excelight. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41qY4MywkKL.jpg" noproxy>