Solar power dominated cleantech investments in April

Investors were still pouring money into solar power ventures in April — with about 45 percent the $330 million invested in clean technology ventures pointed toward solar power startups.

LED network maker Digital Lumens raises $10M

Digital Lumens, which provides software to remotely manage warehouse lighting powered by light-emitting diodes (LEDs), announced today that it has raised $10 million in its second round of funding.

LED lighting company Bridgelux raises $21M

Bridgelux, a manufacturer of LED lighting technology, has raised almost $21 million in its latest round of funding, according to a filing with the Securities and Exchange Commission today.

Redwood Systems wants lighting to behave like a broadband network

Light-emitting diode (LED) lighting is more power-efficient than your typical incandescent light bulb, but it requires a different type of power setup. That’s where Redwood Systems, a provider of intelligent lighting systems, comes in.