LED 2x4 lay in for drop down ceiling, same size as ceiling tile. High output, low wattage, low heat and energy efficient in every way. These wire with 120v or (100-277v) one hot, one neutral and one ground. They also have the dimming option if you have a dimmer switch. Low wattage allows you to hook several on a single switch. They give a high amount of lumens (approximately 7500-8200) for the wattage. Shipping is by FedEx in most cases. On larger quantities they can be delivered by local truck. Installation available on a per job basis. Call for quotation. These have a manufacturer 5 year guarantee. Also available in 5000k. Please specify in the notes.