The hack to keep a color-changing LED’s cycle going is to add a capacitor to retain some charge between pulses, and a diode to prevent that charge from draining back into the rest of the circuit.

These battery powered LED lights emit festive colors changeable with a remote and are waterproof as well! Now you can profit by saving half off the cost of these lights via Neowin Deals.

Think of an item — any item — you might use in home decor. Chances are somebody now sells a version of same that comes equipped with color-changing LED lights.

Sync this smart bulb with Siri for $25 There's an emerging crop of lower-cost alternatives, though, including a new, color-changing LED from Feit Electric that costs $25. It uses Bluetooth to ...