Redstone Lamp

A redstone lamp is a block which produces light when activated with redstone power.

Obtaining
A redstone lamp can be crafted from redstone and glowstone, and can be mined by hand, or with any tool, in 0.45 seconds, dropping itself as an item.

Usage
A redstone lamp can be used to produce switchable light.

To place a redstone lamp, a redstone lamp item while pointing at a surface facing the space the redstone lamp should occupy.

Redstone lamps are redstone mechanisms and can be activated by:
 * An adjacent active power component, including above or below: for example, a redstone torch (except that a redstone torch will not activate a redstone lamp it is attached to), a block of redstone, a daylight sensor, etc.
 * An adjacent powered block (for example, an opaque block with an active redstone torch under it), including above or below
 * A powered redstone comparator or redstone repeater facing the redstone lamp
 * Adjacent powered redstone dust configured to point at the redstone lamp (or on top of it) or directionless; a redstone lamp is not activated by adjacent powered redstone dust that is configured to point away from it.

A redstone lamp activates instantly, but takes 2 redstone ticks to turn off (4 game ticks, or 0.2 seconds barring lag).

An active redstone lamp produces block light 15. An inactive redstone lamp produces no light.

Although a redstone lamp acts like an opaque block in most ways (torches and levers can be attached to it, redstone dust can be placed on it, etc.), an active redstone lamp is "transparent" to sky light, reducing the sky light level by 1.

Data values
A redstone lamp uses its ID to specify its activation state:

Every redstone lamp (active or inactive) has a block data value of 0. Redstone lamps have no block states.

Gallery
Redstone-Lampe Lámpara de redstone Lampe de redstone Redstone-lamp Lampa Лампа 红石灯