GravityLight is an LED map powered by gravity that requires no batteries or recharging — a perfect substitution for a kerosene lamp. Two LEDs can provide brightness up to 15 lumens which bright enough for a small room.
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GravityLight is an LED map powered by gravity that requires no batteries or recharging — a perfect substitution for a kerosene lamp. Two LEDs can provide brightness up to 15 lumens which bright enough for a small room.