to install : 1. the panel on the ceiling keel and keep the panel naiant with the ceiling 2. the input DC wiring of the panel with output DC of driver and then connect the AC input of driver to the line voltage. air mass and efficiency : * This 40W orthogonal 300x1200mmm LED panel ethical motive creates a mod and energy effective lighting scheme. Reaching its good brightness as soon as you switch it on, the LED panel ethical motive part of the ceiling providing a swell finish and a efficient look. * Compared to volume unit CFL, the energy efficiency of the panel ethical motive is as as 80 %. * The panels 60 Watts of power and use the latest SMD2835 led chips to emit a lustrous take in ethical motive which is unmitigated. Widely : General Lighting specified as storefronts, bars, cafes, restaurants, beauty salons, marketing storesoffices, hotels, homes, shops, hospitals, schools and past common entities. : * Wattage : 40W * Voltage : AC110V * lucent : 4200 LM * Led chip : SMD2835 -LRB- 180 -RRB- * Life Span : 50000 HRS * Color Temperature : Daylight Andrew D. White -LRB- 4000K -RRB- * Product Size : 303x98x1213 * CRI -LRB- Ra -RRB- : 83-85 * Beam Angle : 110 ° * Material : AL6063 * Frequency : 60 Hz * Power factor : 0.9 * operative Temperature : -20 ? . ~ ? . * Storage : -20 ? . ~ ? . Package : 2X 40W Led panel ethical motive .