Akk 150W Led Parking Lot Lighting With Adjustable Arm Mount, 21000Lm, Etl Listed Product Details ? Energy Saving - The LED Parking Lot Lighting with built-in Dusk to Dawn Photocell which detects ambient light, Auto Light OFF at sunrise/daytime and ON at sundown/night. This saves over 75% on your electricity bill by replacing 400W MH/HPS/HID light. ? Exceptional Durability - The ETL/DLC Listed 1-10V Dimming LED Parking Lot Lights construct of heavy duty die-casting aluminum body, hollow out heat sink design increases the heat dissipation surface and accelerate the air flow, which ensure 50,000Hrs lifespan. ? Easy to Install ? The Parking Lot LED Lighting is equipped with a Adjustable Arm Mount and the Arm Mount is separated from the Parking Lot Light, which can be easily installed by a single person. Simply fix the Arm Mount to the Pole, tighten the Parking Lot LED Lights to the Arm Mount with screws. ? Wide Application- The IP65 LED Parking Lot Light can handle all weather conditions and the driver built-in 10kv surge protection device, fully suitable for outdoor places such as parking lots, roadways, driveways, sports fields, squares, highway Lighting and other commercial and industrial area. ? Reliable 5 Year Guarantee Professional Service - AKK promises that all LED Parking Lot Lighting are returned within 30 days. If you have any questions about lamp selection, Dialux lighting layout, after-sales, etc, just leave us a message, lighting layout will be sent to you according to your requirements. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.