The Highpower Lightning 505 Regulated Power Supply is a good general purpose power supply. It features selectable 12 or 24 VDC 1 Amp output with integrated with battery backup guarding against electrical failure (actual voltage output is 13.8 VDC and 27.6 VDC respectively). This power supply is a linear design, so it can work well with sensitive electronics (like powering card readers and door controllers) in addition to powering electric strikes and maglocks. It's simple installation allows you to utilize this power supply for retrofits as well as new applications. It has a unique heat-sinking configuration which better cools the linear regulator, which means longer life and trouble free operation compared with other power supplies. The Lightning 505 is Made in U.S.A. of US and foreign components and features a 5-Year warranty. Includes a 12" x 12" x 4" enclosure with knockouts.

Available accessories include a battery cable kit, which facilitates the connection of Led Acid batteries to the backup circuit, a key lock for the enclosure cover to lock the cover using a key instead of screws, and an optional power cord kit which allows the connection of 110 power to the unit with a standard electrical cable. Optional power cord kit includes a grommet for feeding the cord through a knockout hole in the side of the enclosure.

Using the battery backup feature with this power supply is optional. There are several battery backup configurations for this power supply. If you are running the power supply in 12 VDC mode, you can use any of the battery configurations below. If you are running in the 24V mode, you should only pick the two 4AH 12V Led Acid battery option below. To approximate your run time given a particular load, use the following: In 12 VDC mode: [(Total Amp Hour Rating of Batteries) / (Load on power supply in Amps) * 0.65] In 24 VDC Mode: [(Total Amp Hour Rating of Batteries / 2) / (Load on power supply in Amps) * 0.65]