LUBAN LED lights for signal tower, industrial signal warning lights, column tower lamp andon lights with rotating base, switchable stable/flashing light, 12V 24V DC (2 layers, without

These seem to work well. They're not crazy bright but are bright enough to see across the room. I don't think they'd work as well in an outdoor setting from far away, but you'd have to try them out to see.The brightness varies a bit with voltage. They technically light up around 6-7 V, but they're rated for 12-26. At 12V, they draw about 21 mA per light. Current draw increases, along with brightness, up to 16V, where they draw about 40 mA per light. After this, the brightness and current draw are constant up to at least 30V. In other words, at 30V, they still draw 40-42 mA per light, and do not change in brightness beyond 16V. I didn't check past 30V for power supply reasons. I assume the light will still draw 40-42 mA up to the rated 36V.

Light is great, bright colours. The base looks weak but you make sure do not over tight the screwsThank you

Très bon produit

Bought this for a classroom project and it works pretty well. The lights are bright, but not bright enough to use outside in full sun and be reliable. Little switch on the PCB board to switch between flashing and solid, each color is independent. Both colors can be used at the same time. It's not really industrial grade, but it's also not at that price point. A similar light for a factory machine was over 500 dollars.

Love these lights... use them with a garage door sensor (beam) that covers two O/H garage doors to know if the cars do not block the O/H door from coming down or up. Unfortunately, the red LED stopped working, so I have to purchase another replacement. They state 100,000 hrs for the life of those LED's which this one definitely did not even come close to.