Leff Goes Solar!
Leff is an authorized distributor for SolarWorld!
SolarWorld is the largest solar manufacturer in the United States. All of their products are made in the USA! Contact your Leff salesperson if you have a solar opportunity.
Sunmodule® solar panels deliver more energy.
Independent testing proves that SolarWorld Sunmodule brand panels generate more kW-hours per name-plate kW than other major brands. They're also more reliable and easier to install.
Everything you need to do the job right.
SolarWorld Sunkits® include more than just modules, inverters and racking; you get customized sales proposals and drawings as well as sales and marketing support.
Made in the USA.
SolarWorld Sunmodules are made in the USA from American materials and components and meet all applicable Buy American Act requirements.
Reliable partners for over 30 years.
SolarWorld is the largest solar photovoltiac manufacturer in the USA since 1977 and the products we made 30 years ago are still working today.