A desk lamp can be a smart device in its own right. The CLED-0100 packs a lithium battery with charge-management circuitry for cordless, go-anywhere light; the CLED-0600 integrates a wireless-charging pad and USB output board — a lamp that doubles as a charging station; the CLED-0250, 3908 and 0400 balance brightness with a compact footprint. From lithium protection PCBs and wireless-charging coil drivers to USB power management, every PCB works to make desk lamps smarter.