The 400W sodium lamp in an ellipsoidal frosted bulb. Thanks to the matte finish, the light does not hit the eyes that hard. The color rendering has not been improved in any way, and therefore it is better to use this lamp only in industrial facilities.
For the first time we can say that an LED lamp can be good The diodes in the lamp are ordinary ones with a color temperature of 6400 K. The diffusing cover is blue.
These bulbs are designed to replace 125W mercury lamps. They were used outdoors. They shine much better than the currently installed LED lights. They have a starter similar to those used for fluorescent lamps. Made in China.
The picture shows one of the bulbs used for street lighting. I received it as a gift along with the Živa 125W lamp. The lamp shines great, but there is a flicker until it burns to 100% power. In the photo, the light bulb looks like it is approaching the end of its life, but it glows in a normal color.